16 feet to 8 yards as a fraction in simplest form

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x

22. catie is starting a babysitting business. she spent $26 to make signs to advertise. she charges an initial fee of $5 and then $3 for each hour of service. write and solve an inequality to find the number of hours she will have to babysit to make a profit. interpret the solution.!