Math problem

y=2/3x -1 y=-x/1 4 i want this to be solved and graphed please

Getting the x by itself 3(x-2)-(x+5)-2(3-2x)=18 I need step by step I have to show my work thanks a lot I'm very confused right now

The pasteurization temperature of milk by the High Temperature Short Time (HTST process is 161 Fahrenheit. What is this temperature in Centigrade? How do you work the problem and show all the work on paper.

A restaurant sink compartment is 30" long and 24" wide. If filled to a depth of 12 inches, how many gallons are in the sink? I divided 35/171 my ans. Was 2.0467 and I rounded it to 2.05 GPG dosage. I'm sure it's wrong, but I don't know what I'm doing. How do you work the problem and show...

The amount of a tracer dye injected into the bloodstream decreases expontially, with a decay constant of 3% per minute. If 6 cc are present initially, how many cubic centimeters are present after 10 minutes? (here k will be negative) Note : Proper working and illustration are necessary.