The function h(t)=−16t2+48t+28 models the height (in feet) of a ball where t is the time (in seconds). How many seconds is the ball in the air before it hits the ground? Just write the numerical answer - do not include t= or any units in your answer. If your answer is not an integer, enter it either as a decimal or an improper fraction - do NOT use mixed numbers

You are updating your garage and the only thing left to paint is your garage day. you're only going to paint the slide that faces the street. the garage door is 9 fert 8inches tall and 120 inches wide. you need to know the surface area of the side of the garage door to determine how much paint to buy. the hardware store sells paint by how much covers a square foot. what is the surface area you should report to the hardware store what is the answer

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

Write a story that matches with the expression 42x-5 pls hurry