HELP SOMEONE PLEASE ANSWER the math question​

4, 2, 1, 3

Step-by-step explanation:

2/3(x + 21 - 1) - 162

We used the formula for PEDMAS

Step 1

2/3(x + 20) - 162

Step 2

2/3(x + 20) = 162

Multiply both sides by 3/2

Step 3

3/2× 2/3(x + 20) = 162 × 3/2

x + 20 = 81 × 3

x + 20 = 243

Subtract 20 from both sides

x + 20 - 20 = 243 - 20

Step 4

x = 223

Therefore, according to the above calculation, the correct steps to solve this question is 4, 2, 1, 3

b. 24 mm

step-by-step explanation:

use the pythagorean theorem.

a^2 + b^2 = c^2

a^2 + 7^2 = 25^2

a^2 + 49 = 625

a^2 = 576

a = 24

answer: b. 24 mm