7. a man weighs 220 pounds. he starts a fitness program and plans
to lose weight at a rate of 3 pounds per month. at that rate, what
would be the change in his weight after 8 months? how much would he weigh.

Ihonestly don’t understand this at all

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

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.!