An exponential function is given by the equation y = 3x .Using the points x and x+1, show that the y-values increase by a factor of 3 between any two points separated by x2- x1 =1. (4 points)

Ateam of runners is needed to run a 1 2 -mile relay race. if each runner must run 1 4 mile, how many runners will be needed?

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?

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!