I have a math problem that I can't do. When I was in fifth grade.

1. A 2-meter-long steel was sawed into 5 equal parts, each of which was full-length (C).

Each section is (b) meters long, each section is 1 meter (a), and each section is 2 meters long (c).

—————————————— 2 meters

- 1/5 = 2 ÷ 5 = 0.4m。

—————1m

2.● stands for pencil and △ stands for eraser.

●●●●●●+◇ ◇ 9.35 yuan.

◇◇◇◇+●●● It is 9.35-2.3=7.05 yuan.

Then: ●●●●●●● ●+◇ ▽ ▽ ▽ is 9.35+7.05= 16.4 yuan.

So: ●+◇ Yes 16.4÷8=2.05 yuan.

●●●●+◇ ◇ is 2.05×3=6. 15 yuan.

(●●●●● + ◇◇◇)-(●●● + ◇◇◇)= ●●

9.35 yuan -6. 15 yuan = 3.2 yuan

Namely: ●● = 3.2 yuan

So: ● It is 3.2÷2= 1.6 yuan.

Namely: a pencil = 1.6 yuan.

(◇◇◇◇◇ + ●●●)-(●●● + ◇◇◇)= ◇◇

7.05 yuan -6. 15 yuan = 0.9 yuan

Namely: ◎◎= 0.9 yuan.

Then: ◇ is 0.9÷2=0.45 yuan.

Namely: an eraser =0.45 yuan.

A: A pencil = 1.6 yuan and an eraser =0.45 yuan.