4 ice cream cones cost $10.00. At this rate, how much do 3 ice cream cones cost?

Since you dont know the unknown money per cone we make it an equation:

4c(unknown money per cone) = $10

Let's divide both sides by 4

C = 2.50, now we found out the cost of 1 cone.

Since there are 3 cones we multiply by 3,

2.50 x 3 = $7.50

Step-by-step explanation:

4c=10

4c/4=10/4

c=2.5

3c=x

3(2.5)=x

7.5=x

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1