Last week, Clay wrote 4 checks for $20 each from his checking account, withdrew another $30, and finally made a deposit of $96. What was the change in the balance of his account over the week?

$-14

Step-by-step explanation:

4(20)= 80

30+80= -110

-110+96

-14

Step-by-step explanation:

taking money from his account is a minus operation. it lowered the balance.

adding money (like a deposit) is a plus operation. it increases the balance.

so, he did

-4×20 - 30 + 96 = -80 - 30 + 96 = -14

his balance decreased by $14 over this week.

the answer is c. 23/3

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation: