7.
Which expression is not equal to 3a + 4a?
a. 7a
b. (3+4)a
c. a(3+4)
d. 3+ 4a

The constitution gives congress the power to create federal courts lower than the supreme court higher than the supreme court equal to the supreme court, unaffected by the supreme court.

Which two undefined geometric terms always describe figures with no beginning or end?

Use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2 + 9 = −26 −3 − 7 = 13