Which of the following represents the most accurate estimation of 375+147

How many solutions does the nonlinear system of equations graphed bellow have?

Acollection of coins has value of 64 cents. there are two more nickels than dimes and three times as many pennies as dimes in this collection. how many of each kind of coin are in the collection?

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way