8 Which expression has the factors (x + 5) and
(1 – 5)
A x2 – 25
B x2 + 25
C x2 – 10 + 25
D x2 + 10x+ 25

The number of revolutions of two pulleys is inversely proportional to their diameters. if a 24-inch diameter pulley making 400 revolutions per minute is belted to an 8-inch diameter pulley, find the number of revolutions per minute of the smaller pulley.

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

State if the two triangles are congruent. if they are, state how you know?