Kathy and Cheryl are walking in a fundraiser. Kathy completes the course in 4.2 hours and Cheryl completes the course in 7 hours, Kathy walks two miles per hour faster than Chery. Find Kathy's speed and Cheryl's speed in miles per hour.

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18

According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)

Mason and christian go to the movie theater and purchase refreshments for their friends. mason spends a total of $45.75 on 3 bags of popcorn and 6 drinks. christian spends a total of $71.50 on 6 bags of popcorn and 4 drinks. write a system of equations that can be used to find the price of one bag of popcorn and the price of one drink. using these equations, determine and state the price of a drink, to the nearest cent.