Part A Marven has a coupon that discounts the rental of a full-size car by $25. They decide to buy insurance for each day. If the cost is $465, how many
days, d, will they rent the car? Write and solve an equation.

part B : If they still use the coupon, how many days could they rent the small car
with insurance if they have $465 to spend?

partC: They rent a car with insurance for 5 days but lost their coupon. If Marven
and the three friends spend $75 each, which car did they rent? Write and
solve an equation to justify your answer.

i need help with just C

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.