The equation h(t)=−16t2+78t+45 gives the height of a firework, in feet, t seconds after it is launched from a platform. what is the height of the platform? enter your answer in the box.

Galen sold tickets of his church’s carnival for a total of $2,820. children’s tickets cost $3 each and adult tickets cost $5 each. the number of children’s tickets sold was 30 more than 3 times the number of adult tickets slod. how many children’s ticket and how many adult tickets did he sell?

Find the area of an equilateral triangle with a side of 6 inches

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length