Which algebraic expression represents the number of cups of dog food per week needed to feed 3 dogs if each dog eats x CUPS per day A 7+3x
B 7(3x)
C 7x
D 21÷x

5.(04.07) two different plants grow each year at different rates, which are represented by the functions f(x) = 4* and g(x) = 5x + 2. what is the first year the f(x) height is greater than the g(x) height? year 3 year 0 year 2 year 1

Complete the solution of the equation. find the value of y when x equals to 1 9x-5y=29

Can some one explain how to slove specifically, what is the value of x? 0.9(x+1.4)-2.3+0.1x=1.6 enter the answer as a decimal in the box. x= ?