To babysit one child, fernando charges $10 to drive to the appointment plus $4 per hour. he saves 30% of the total amount he earns. brenna charges $6 per hour and saves 25% of the total amount she earns. which equation can be used to determine the number of hours, h, after which fernando and brenna will have saved the same amount of money?
10 + 0.3(4h) = 0.25(6h)
0.3(10) + 4h = 0.25(6h)
0.3(10 + 4h) = 0.25(6h)
0.3(14h) = 0.25(6h)

Name the most appropriate metric unit for each measurement

If 3x+8=3x+8 is it one solution or no solution

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