Ayuda por favor en la actividad 3 , Funciones, Matemáticas

Mrs. gehrke said cheddar weighs 16.8 pounds. he actually weighs 15.2 pounds. what is the percent error?

Fa bus driver leaves her first stop by 7: 00 a.m., her route will take less than 37 minutes. if she leaves after 7: 00 a.m., she estimates that the same route will take no less than 42 minutes. which inequality represents the time it takes to drive the route, r?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10