The rental rate at Rent a Wreck is $50 plus $0.5 per mile
driven Write an equation that
represents the total cost. y. to
rent a car for x number of miles
HELPPP FASTTT!!

Will give brainliest sum of arithmetic series (sigma notation) find the numerical answer to the summation given below. (image shown below)

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?