What is the mean of the data set rounded to the nearest tenth? 1.4, 1.1, 1.8, 1.6, 1.6 ,2.2, 1.1

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

If you flip a coin 3 times, what is the probability of flipping heads 3 times? a. p(3 heads) = 3/8 b. p(3 heads) = 1/6 c. p(3 heads) = 1/8 d. p(3 heads) = 1/2

Acredit union pays 5% annual interest, compounded daily, on savings deposits. find the value after one year of $500 deposited in this account. $525.64 $25.64 $20.40 $520.40