PLEAASE HELP ASAP - ILL GIVE BRAINLIST

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches. approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *

What is the distance from zero if a quadratic function has a line of symmetry at x=-3 and a zero at 4

Mrs. blake's bill at a restaurant is $42.75. she wants to leave the waiter an 18% tip. how much will she pay in all, including the tip?