Julian has 56 books arranges them in seven groups. julian buys 16 more books and groups them in the same way as his other books. write an eaquation to sho how may groups of books, g, julian has in all. then solve.

Aswimming pool has an input pump for filling the pool and an output pump for emptying the pool. the input pump can fill the pool in 3 hours, and the output pump can drain the pool in 5 hours. as you go to bed, the pool is full, but a neighbor’s kid turns on the output pump. at midnight, you awake to find the pool half empty. immediately, you turn on the input pump, but you are sleepy and forget to turn off the output pump. at what time will the pool become full?

Daniel expanded the expression as shown below -2(-8x-4y+3/4)=-10x-8y-11/4 what errors did he make? check all that apply

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2