4(x + 2) = 2x + 10

explain each step plz

What is the vertex form of f(x) = x2 + 6x + 3

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!

Which is the best estimate of the product of 0.9 x 0.88? 0 0.25 0.5 1