Which term could be use as the last term of the expression for -5x^2y^4 + 9x^3 y^3

Neoli is a nurse who works each day from 8: 00 am to 4: 00 pm at the blood collection centre. she takes 45 minutes for her lunch break. on average, it takes neoli 15 minutes to collect each sample and record the patient's details. on average, how many patients can neoli see each day?

The zoo collects $9.60 for every 24 tickets sold. how much will be collected for 400 tickets?

Can anyone me get through my algebra 2 class? the only class i need to graduate..