Determine whether y varies directly with x. if so, find the constant of variation k and write the equation.
x y
6 24
18 72
54 216
162 648
a) yes; k = 4; y = 4x
b) yes; k = 3; y = 3x
c) yes; k = 6; y = 6x
d) no

Divide the following fractions 3/4 ÷ 2/3 1/2 8/9 9/8 2

Three friends went on a road trip from phoenix, az, to san diego, ca. mark drove 50 percent of the distance. jason drove 1/8 of the distance. andy drove the remainder of the distance. 1. andy thinks he drove 1/4 of the distance from phoenix, az, to san diego, ca. is andy correct? 2. the distance from phoenix, az, to san diego, ca, is 360 miles. how many miles did each person drive? 3. solve the problem. what is the answer in total?

Adeposit of 5500 at 6% for 3 years equals