Please help! I only need the answer for the first fill-in-the-blank. Click the other picture to see the choices.

20 da is equal to a. 2,000 cm. b. 2 m. c. 20,000 cm. d. 20,000 mm

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?

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12