PLEASE HELP IM DOING A TEST AND IM CONFUSED!! Use synthetic division to evaluate f(x)= 3x^4-5x^3+x-7 when x=2

Daniel expanded the expression as shown below -2(-8x-4y+3/4)=-10x-8y-11/4 what errors did he make? check all that apply

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.

During the election for class president, 40% of the students voted for kellen, and 60% of the students voted for robbie. 500 students voted in total. how many more students voted for robbie than for kellen? answer with work : )