Evaluate 3{5 + 3[10 + 4 · 8]}
393
1,008
1,023

Option A is correct

393

Step-by-step explanation:

Evaluate:

Use PEDMAS rule:

P - Parenthesis

E - Exponent

D - Division

M- Multiplication

A - Addition

S - Subtraction

Apply the above rule:

3{5+3[10+32]}

⇒ 3{5+3[42]}

⇒ 3{5+126}

⇒

⇒393

e

step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)

x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)