Jodi and mariah are sisters. jodi is three years older than mariah. using one variable, write an expression to represent the sum of their ages. make sure to explain what your variable represents.

Y=4x^2+x-1 solve using quadratic formula

Consider the functions below. function 1 function 2 function 3 select the statement which is true about the functions over the interval [1, 2] a b function 3 has the highest average rate of change function 2 and function 3 have the same average rate of change. function and function 3 have the same average rate of change function 2 has the lowest average rate of change d.

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10