Can someone me with number 3 a) b) c) and d)?

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg

The volume of a cube-shaped shipping container is 13,824 cubic inches. find the edge length of the shipping container.