99 points for his phone service, charlie pays a monthly fee of $ 18 , and he pays an additional $ 0.06 per minute of use. the least he has been charged in a month is $ 102.24 . what are the possible numbers of minutes he has used his phone in a month? use m for the number of minutes, and solve your inequality for m .

Bring the fraction a/a-4 to a denominator of 16-a^2

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered