The number of roses purchased is proportional to the total cost as modeled in the graph shown. Four roses cost $5 as represented by Point R.
Total Cost of Roses
25
20
15
Total Cost (dollars)
10
8
0
12 16
Number Purchased
What is the cost of one rose?
O $1.25
O $2.50
O $4.00
O $5.00

The equation m = 19.32v can be used to find the mass m in grams of a pure gold coin with volume v in cubic centimeters. carl has a coin with a mass of 37.8 grams. the coun's volume is 2.1 cubic centimeters. could the coin be pure gold? explain your reasoning. whoever answers this correctly gets marked brainliest! this is also worth a decent amount of points than normal questions!