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.

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq

step-by-step explanation:

1