Daniel puts $80,000 in an account that earns 0.6% interest compounded annually. how much interest does he earn after 15 years?

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

Find the area of the regular hexagon if a side is 20 cm.

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?