Question

Please help I’m being timed.

Answer 1

a) 16

b) -8

c) 2

Explanation:

Given:

p = 2

q = -3

r = -1

a)

5p - 2q

Substitute variables.

5(2) - 2(-3)

Multiply.

10 + 6

Add.

16

b)

pq + pr

Substitute variables.

(2)(-3) + (2)(-1)

Multiply.

-6 - 2

Subtract.

-8

c)

pr²

Substitute variables.

(2)(-1)²

Square -1.

(2)(1)

Multiply.

2