What is the sum of a interior angle on a 19-gon

One hundred 50 cent coins have a mass of 690g. What is the mass of one 50 cent coin?

If m=a/b, m=18, and a=7, find b

What is 40 divided by 2.5

Is it a function? If you said no, which x value repeats, making it not a function? (1, - 2), (2, 1), (3, 6), (4,13), (5, 22)

Now that you have selected the correct unit above, what is the value of x?

A soccer player scores three goals in two games how many goals are they expected to score in nine games

if the area of a rectangle is expressed as x^4 - 9y^2, then the product of the length and the width of the rectangle could be expressed as ...

Two spherical chocolates are filled with a cream filling. The space inside one chocolate has a radius of 3 cm, and the other has a radius of 4.5 cm. How much more cream filling is in the larger chocolate than in the smaller chocolate? Use 3.

97/16 as mixed number

The equation $4.50 h + $2.00 = $20.00 shows the cost to play h hours of miniature golf. How many hours of golf were played?