Question

Picture below is the question

Answer 1

c

Explanation:

Answer 2

23, 5, 3

Explanation:

Using order of operations

Multiplication is performed before addition / subtraction

(a)

5 + 2 × 3²

= 5 + 2 × 9

= 5 + 18

= 23

(b)

`(7+8)/(5-2)`

=
`(15)/(3)`

= 5

(c)

`(18-3(3))/(5-1^2)`

=
`(18-6)/(5-1)`

=
`(12)/(4)`

= 3