Bethany sells roses and petunias. the expression 3r+2.5p gives the cost (in dollars) of roses and petunias. what is the cost of 7 roses and 8 petunias?

Substitute 7 for r and 8 for p in C(r,p) = 3r + 2.5p.

What is C(7,8) = 3(7) +2.5(8)?  Be sure to include the $ sign with your answer.

Idon't see any graph, however the graph of the function : f(x) = x²-2x+3 is a parabola: 1) open upward (since a> 0)2) it intersects y-axis in 3 (y=3)3) its axis of symmetry is x = +1 ( -b/2a)4) it's minimum is y = -2, so its vertex is (1,-2)5) it doesn't intersect the x-axis since discriminant < 0 

020 nanwkwkwkkwkwkwkw