A contractor purchases ceramic tile to remodel a kitchen floor. Each tile costs $4, and the adhesive and grouting material costs $17.82. If the contractor is charged a total of $545.82, how many ceramic tiles did the contractor purchase? *

If m 17 27 90 63 ** picture is attached

Pls if a cow has a mass of 9×10^2 kilograms, and a blue whale has a mass of 1.8×10^5 kilograms, which of these statements is true?

1. a parachutist is 800 feet above the ground when she opens her parachute. she then falls at a constant rate of 5 feet per second. select the equation that represents this situation. h = -800t + 5 y = -5x + 800 h = 5t - 800 y = 800x + 5 i need