Grayson invested $9,400 in an account paying an interest rate of 8 % compounded monthly. Stella invested $9,400 in an account paying an interest rate of 8 %
compounded quarterly. To the nearest hundredth of a year, how much longer would
it take for Stella's money to triple than for Grayson's money to triple?

Please help

x is variable or an unknown value to find

example:

2x = 5 which means x = 3

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.