Determine whether y varies directly with x. If so, find the constant of variation k and write the equation. х

y

5 25

1050

1570

2090

O

A. Yes; k=2 y=2x

O

B. Yes; k=4 y=4x

O

C. Yes; k=5 y=5x

O D. no

Suppose a store sells an average of 80 cases of soda per day. assume that each case contains 24 cans of soda and that the store is open 10 hours per day. find the average number of soda that the store sells per hour.

In δabc, m∠acb = 90°, cd ⊥ ab and m∠acd = 45°. find: a find cd, if bc = 3 in

Apackage of orgainc strwberries costs $1.50 while there in season and $2.25 when not in season what the percent increase