10. A cell phone costs $200 to start. Then theres is a 50$ charge each month. a. What is the total cost (start up fee and monthly charge) to use the cell phone plan for 1 month?

Which inequality comparing two of the expressions is true when 0.7 < x < 0.9

The constant of proportionality is always the where k is the constant of proportionality. additionally, you can find the constant of proportionality by finding the ratio for any point onasap

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days