On a math test, John correctly answered 10 questions. These correct answers gave him a percent score of 40%. How many total questions were on this test? (SHOW WORK)

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x

Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?