70×2 -40 = what answer right this is for fun you'll get brainliest

Me. drysdale earned 906.25 in interest in one year on money that he had deposited in his local bank if the bank paid an interest rate of 6.25% how much money did mr. drysdale deposit

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

Given the following sampling distribution of one mean with a sample size 49, from a normally distributed population, find the population standard deviation, o.79828588912497