Question

Picture below is the question

Answer 1

Answer:

c

Step-by-step explanation:

Answer 2

Answer:

23, 5, 3

Step-by-step explanation:

Using order of operations

Multiplication is performed before addition / subtraction

(a)

5 + 2 × 3²

= 5 + 2 × 9

= 5 + 18

= 23

(b)

$\frac{7+8}{5-2}$

= $\frac{15}{3}$

= 5

(c)

$\frac{18-3(3)}{5-1^2}$

= $\frac{18-6}{5-1}$

= $\frac{12}{4}$

= 3