Im confused on this practice quiz if anyone can help verify answers 1 and 2 and explain how to get 3 and 4 I would really appreciate it

What is the standard form of -5x^2+2x^4-11+x^3+3x

You are making a blueprint of your bedroom and you plan to use a scale factor of 18 . the actual width of your room is 14 feet and the actual length of your room is 16 feet. determine the width and length of your room on the blueprint. on the blueprint, your room will have a width of feet and a length of feet.

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.