Question

Evaluate u + xy, for u = 20, x = 9, and y = 8

Answer 1

This is how you work it out:
u + xy
Plug in your numbers that you know:
20 + 9 * 8
20 + 72
92

Answer 2

20+9(8)..... (Substitute and multiply 9 by 8 20+72 (add 20 and 72) 92