What is the axis of symmetry of h(x) = 5x2 + 40x + 64? x = −16
x = −4
x = 4
x = 16

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

Rena is building a 1: 180 scale model of a real castle. her model has a rectangular base that is 3 feet wide and 4 feet long what is the area of the base of the actual castle in square feet

How do you write something in scientific notation?