John is working part-time in an office. he works 30 hours per week and earns $600 each week. he currently has $2,700 in a savings account. john needs to spend $3,780 on car repairs. he sets aside $492 a week for his usual expenses. john’s savings account pays 4% simple interest. if the principal is
$2,700, what will the balance be after interest is added?

Ascientist places 24 cells in a petri dish. she knows the cells grow at an exponential rate, doubling in number every hour. how long will it take (in hours) for there to be 1100 cells in the dish? time to 1100 cells: 5.51832530 hours how long will it take to reach 110 cells? time to 110 cells : 2.1963972 hours what is the average rate of change in the number of cells between 9 hours and 11 hours? average rate of change: cells per hour what is the instantaneous rate of change after 7 hours? instantaneous rate of change: cells per hour note: you can earn partial credit on this problem.

The gdp is $1,465.2 billion. the population is 249,793,675. find the per capita gdp.

The blue lake trail is 11 1/2 miles long.grace has hiked 1 1/2 for 2 hours. how far did she from the end of the trail