The sale price of a dress is 7/10 of its regular price. The sale price of a dress is $44.80. The equation 7/10r= 44.80 can be used to find the regular price r in dollars of the dress. Determine whether r = 31, r= 52, or r=64 is the solution of the equation, and tell what the solution means.

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation:

40 x 50 = 2000

step-by-step explanation:

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2