Question

50% of one-twentieth of the product of 12 and 5z + 5.

Answer 1

`(3)/(2)` z +
`(3)/(2)`

Explanation:

the product of 12 and 5z + 5 = 12(5z + 5) = 60z + 60

`(1)/(20)`(60z + 60) = 3z + 3

50% =
`(1)/(2)`, hence

`(1)/(2)`(3z + 3) =
`(3)/(2)` z +
`(3)/(2)`