Simplify
(3 + 4a) + (5a + 3)

If u good at math hit me up on insta or sum @basic_jaiden or @ and

Find the area of the surface obtained by rotating the curve z=4e^2y from y = 0 to y =1 about the y-axis. the area is square units

Sarah needs 3 feet of fabric for a project she is working on, but the store only sells the fabric in meters. one meter of fabric costs $1.20. how much will the fabric cost?