10.solve 16x + 9 = 9y - 2x for y
13.solve y = 4x + 8x for x
14.solve m = 10x - x for x
23.(is the picture)

A25-inch wide drum is used in a marching band. what area does the top of the drum cover? round to the nearest hundredth. (use 3.14 for pi.)

Cameron made 1 loaf of bread. his family ate 4/6 of the loaf of bread. how much of the loaf of bread remains? /

Write the expression as a single natural logarithm. 2 in a - 4 in y