Question

7.

Find the value of xy; when x = 5 and y = 3
I
8.
Find the value of a + b; when a = 4 and b = -14
9.
Find the value of 6x + y; when x = 2 and y = 10

Answer 1

7. 15

8. -10

9. 22

Explanation:

7. mulitply 5 and 3

8. add 4 and -14

9. 6(2) +10 = 12+10