Simplify. 3(x+2y)+5x−y+1

a. 8x+y+18x+y+1

b. 8x+5y+18x+5y+1

c. 6xy+5x−y+16xy+5x−y+1

d. 8x+7y+1

Calculate the mean value (expected value) of the following discrete variable x (10 points): x = 0, 1, 2, 3, 4, 5, 6 p(x) = 0.2, 0.2, 0.15, 0.15, 0.15, 0.1, 0.05

Find the cocordinatse of the point on y axis which is nearest to the point (-2,5)

Acollege student takes out a $7500 loan from a bank. what will the balance of the loan be after one year(assuming the student has not made any payments yet) a. if bank charges 3.8% interest each year ?