A stack of 75 identical plastic plates forms a column approximately 9 inches tall. At this rate, which of
the following is closest to the number of plates that
would be needed to form a column 20 inches tall?

Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. she also earns a base salary of $750 per week. what were her sales last week if her total earnings for the week were $1,076.25?

If chord ab is congruent to chord cd, then what must be true about ef and eg?

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the curves about the given axis.y = 7ex, y = 7e^-x, x = 1; about the y-axis