Alocal cable tv company charges $4 for older movies and $8 for current movies, plus a monthly fee of $30. in july, kendra ordered 5 older movies and 3 current movies. which equation shows how much kendra paid the cable company, c,for the month of july

a c=(5x8)+(3x4)+30
b c=(5x4)+(3x8)+30
c c=(5+4)x(4+8+30
d c= (8x12)+30

Do graduates from uf tend to have a higher income than students at fsu, five years after graduation? a random sample of 100 graduates was taken from both schools. let muf be the population mean salary at uf and let mufsu be the population mean salary at fsu. how should we write the alternative hypothesis?

Does anyone know how to do geometryme with this problem

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.