Question

Help

x - y + z; when x = 10, y = 2 and z = 15
x^3 - 9; when x = 3
6.5 - n; when n = 1.8

what are the answers? I need help asap :(

Answer 1

the first one is 23

the second 18

the third 4.7

Explanation:

10-2+15 = 8+15 = 23

x³-9 = 3³-9 = 27-9= 18

6.5-n= 6.5-1.8= 4.7