Question

Please help serious answers only

Answer 1

90-7x3

90-21=69

Ther you go have a great day

Answer 2

Answer:

69

Step-by-step explanation:

We are given the expression:

$\displaystyle \large{10y - 7z}$

Evaluate the expression when y = 9 and z = 3; substitute y = 9 and z = 3 in the expression.

$\displaystyle \large{10(9)- 7(3)} \\ \displaystyle \large{90- 21} \\ \displaystyle \large{69}$