An arch in the shape of a parabola is 10 feet wide at its base and 25 feet tall How wide is the ach 9 feet up? Explain how you found your answer

Which of these is and example of a literal equation? a) 6+30=6^2 b)3x-4y c)12=9+3x d)ax-by=k

Asap! i'm not good math and i'm lost.

Axel follows these steps to divide 40 by 9: start with 40. 1. divide by 9 and write down the remainder. 2. write a zero after the remainder. 3. repeat steps 1 and 2 until you have a remainder of zero. examine his work, and then complete the statements below.