How tall is a tree that casts a 32 foot shadow if a 6 foot man casts a 8 foot shadow

If a =6, what is the value of 2a(3b + 5c)?

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

3c2 + 2d)(–5c2 + d) select all of the partial products for the multiplication problem above.