15 points & Brainliest!! :)

Consider this equation.
7.8 + 2(0.75m + 0.4) = -6.4m + 4(0.5m - 0.8)
Follow the steps to simplify the left side of the equation by using the distributive property and combining like terms.
1. Distribute the 2: 7.8 + 1.5m + 0.8
2. Combine like terms: 8.6 + 1.5m
Use the same steps to simplify the right side of the equation.
What would it simplify to?

a. -8.4m - 0.8
b. -4.4m - 0.8
c. -4.4m - 3.2

Complete the synthetic division problem below.what is the quotient in polynomial form 2/16 -16

Find the volume of the solid obtained by rotating the region enclosed by the curves y=1x and y=7^-x about the x-axis. (use symbolic notation and fractions where needed.) volume =

Plz answer asap! i will reward brainliest and 12 points for these three questions!take notice: these three questions are completely different! 1) what is the percentage of sugar in the syrup made of 10 kg of water and 4 kg of suugar? 2) what was the original price if after 10% discount it became $450? 3) at first a price was decreased by 12%, then it was disounted again by an additional 5%. what is the percent of the total discount? , and remeber i will award brainliest and 12 points!