Hello. maybe we can b friends

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

True or false? a circle could be circumscribed about the quadrilateral below.

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