Please need help estimating the problems due TOMORROW!!

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.

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.!