Answer: 90
Step-by-step explanation:
The order of operations is termed PEMDAS
where
P = parentheses
E = exponent
M = multiplication
D = division
A = addition
S = subtraction
By simplifying the parentheses first, we have
3 * 5 = 15
15 - 8 = 7
The expression becomes
5[4 + 2(7)] =
2 * 7 = 14
4 + 14 = 18
The expression becomes
5[18]
= 90