Simplify the product. 5b(6b - 10)
a. 11b - 10
b. 5b2 6b - 10
c. -b - 10
d. 30b2 - 50b

9/10 divide by -3/15 as a mixed number

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.