The sale price of a jacket is 77% of its original price. the jacket originally costs $87. which expression gives the most reasonable estimate of the sale price?

Ascatterplot is produced to compare the size of a school building to the number of students at that school who play an instrument. there are 12 data points, each representing a different school. the points are widely dispersed on the scatterplot without a pattern of grouping. which statement could be true

What is the quadric regression equation that fits these data

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)