What is the sum of 4n² + 2n+ 12

Me #1 using vocabulary words, including the word “congruent”, state why the measure of angle d is 120 degrees. #2 what is the measure of angle e and why?

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

Asporting good store is offering 30 percent off of the original price(x) of football cleats. the discount will be reduced by an another $7 before sales tax.