Sarah has 11 math problems and nineteen spelling problems. if she can finish 6 of them in a hour. how long will it take her to finish all problems?

Problem melissa is her dad build a walkway in their backyard. the walkway will be 54 feet long and 1.5 feet wide. the local hardware store sells tiles which are 1.5 by 1.5 feet and come in boxes of 12. how many boxes of tiles do they need?

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i

Which of the following parabolas opens down?