PLEASE HELP!! Given the vectors u, v, and w below, evaluate the following expressions:

u= <3,7> v=<4,-5> w=<-2,9>

Find -2.5w

A. <5, -22.5>

B. <-5, 22.5>

C. <5, 22.5>

D. <-5, -22.5>

Aline has a slope of and a y-intercept of –2. what is the x-intercept of the line?

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

Emily is entering a bicycle race for charity. her mother pledges $0.90 for every 0.75 mile she bikes. if emily bikes 18 miles, how much will her mother donate?