The equation y = 0.25x + 50 gives the cost y of renting a car if the car is driven x miles according to the model, what is the best estimate of the cost for renting a car if you plan to drive 250 miles? 50$ 62.50$ 112.50$ 300$

C. $112.50

y=0.25x+50

x = 250 miles

0.25*250=62.50

62.50+50= $112.50

At x=250miles
y=0.25(250)+50
y= 62.5+50
y= 112.5$

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.