Mark has taken 3 tests this semester and his average is a 78%. He really wants to get his test average to an 80% after his next test. What does he need to get on test
#4 to do that?

Phillip had some bricks. he stacked them in 6 equal piles. which expression shows the number of bricks phillip put in each pile? let the variable m stand for the unknown number of bricks. m + 6 m÷6    m−6    6m

What is the value of x? enter your answer in the box. photo attached.

Joseph haydn pet store offers wide variety of leashes for dogs. the store purchases one popular type of leash from its manufacturer for $4.38 each. joseph haydn pets marks up leashes at a rate of 238% of cost. what is the retail price of the popular leash?