Pls help ASAP I DONT have time

Identify the polynomial. a2b - cd3 a.monomial b.binomial c.trinomial d.four-term polynomial e.five-term polynomial

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 360, a standard deviation of 4, and a margin of error of 2.5%