What is the length of the line a ?
a. 10
b. 4
c. 3
d. 5

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.

Taber invested money in an account where interest is compounded every year.he made no withdrawals or deposits. the function a(t)=525(1+0.05)^t represent the amount of money in the account after t years. how much money did taber origanally invested?