Acollection of half dollars and nickles is worth $13.40. there are 34 coins in all. how many are there

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length

Can some one explain how to slove specifically, what is the value of x? 0.9(x+1.4)-2.3+0.1x=1.6 enter the answer as a decimal in the box. x= ?

Find the missing variable for a parallelogram: a = latex: 28in^2 28 i n 2 h = b = 6.3 in (1in=2.54cm)