1 The value of pencils sold by Amaco Middle School is whole cents (that is, the smallest unit of pencil price is cents and is an integer). Some seventh-grade students each buy a pencil, as long as 65438 dollars +0.43. A certain 30 sixth-grade students each bought a pencil and paid $65,438 +0.95. Q: How many more sixth-grade students buy pencils than seventh-grade students?

The two rotators shown in 2 rotate once each.

When the two dials turn once each, the dial hands will eventually fall into a sector marked with numbers. What is the probability that the sum of the numbers of two sectors is a prime number?

3 A three-digit integer consists of 1 3 5. What is the probability that this integer is divisible by 5?

Along Interstate 35, the distance between Austin and Temple is 50 miles. Bonnie drove from Austin to her daughter's home in Temple. The average speed is 50 miles per hour. Leave the car with my daughter and go back to Austin by bus. The speed of the bus is 40 miles per hour. What is the average speed of full names?

The recipe for making 5 cups of hot chocolate requires 2 pieces of chocolate, 1/4 cups of sugar, 1 cup of water and 4 cups of milk. Jordan has five chocolates, two glasses of sugar, a lot of water and seven glasses of milk. If she keeps the above ratio, how many cups of hot chocolate can she make at most?

6 How many 3-bit positive integers have the product of each bit of 24?

7 positive integers x and y are two positive integers whose product is 360, and x is the sum of x and y.

There is a 7-foot *7-foot ground covered with 1 foot square black brick and white bricks, with white bricks in the corner. If you use the same method to lay a floor of 15ft * 15ft, how many white bricks do you need?

The length of the rectangle increased by 10% and the width decreased by 10%. What is the percentage of the original area to the new area?

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