Evaluate the expression below when x = 4 and y = 12.
5x2−3y

Step-by-step explanation:

Put x = 4, y = -5 and z = 2 to the expression 3x² - 4y + xz and use PEMDAS:

3(4)² - 4(-5) + (4)(2)

= 3(16) + 20 + 8

= 48 + 20 + 8

= 76

$ 50

Step-by-step explanation:

Let the total amount that Alex had= $35

As per given information, 70% of her weekly paycheck automatically deposited into saving account .

According to question.

70 % of x= $ 35

x= $ 35 ×

x= $ 50

So, the total amount at paycheck this week is $ 50

Hence, the correct answer is $ 50