select all of the correct answers for the values of x in each of the angles D, E and C in the following regular heptagon: <D=(5x+5Y=(7x+1)°, <X=(7/2x+2)°

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 values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

Calculate the effective quarterly compound interest rate equivalent to a 1% of monthly compound interest rate.