Nicole used 3/8 of her ribbon to wrap a present. if she used 6 ft of ribbon, how much ribbon do nicole have first?

What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radil and altitudes is 4: 3? 23

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

What would be the reasons for lines 3 and 4? a. addition property; subtraction property b. addition property; solve c. substitution property; subtraction property d. substitution property; prove