Need !
jamestown builders has a development of new homes. there are 6 different floor plans, 7 exterior colors, and an option of either a one-car or a two-car garage. how many choices are there for one home?

a.)15 choices
b.)42 choices
c.)84 choices
d.)126 choices

Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?

Having a hard time understanding this question (see attachment).

You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?