Question

Help i will give thanks to the first to answer

Answer 1

It's 21 since 5 times 5 is 25 subtracted 4 is 21

thought it was something else

Answer 2

The value of the expression is 21

Explanation:

You need to plug 5 into z

Expression:

5z-4

5(5) - 4

Notice that 5 shall be multiplied meaning 5 x 5

25-4

= 21