If f(x)=x-5 and g(x)=-3x^2-1,find (f-g)(x)

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Which of the following correctly justifies statement four of the two column proof? a. corresponding angles theorem b. transitive property of equality c. vertical angle theorem d. substitution property of equality

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'