What is the value of the 7 in 34.72 then as many as in 28.097

Grandpa ernie is shrinking! over the past 4 years his height decreased by a total of 2.4 cm. it decreased by the same amount each year. what was the change in grandpa ernie's height each year

Solve the system of equations. 2x-2y=-4 and x+y=8. show work

Graph each quadratic function and identify its key characteristics. f(x) = x^2 - 2x - 3