Which expression is equivalent to
10(-⅘x + 3) -2x?

a) -8x + 3
b) -10x + 3
c) -10x + 30
d) -30x + 30

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?