The water in the swimming pool increases by about 100 gallons every 5 minutes why is this true

Factorize: x^2+8x+10 i just solved it but i don't know if the process is correct

For the equations below which statement is true ?

Simone claims the initial value and y-intercept are the same thing on a graph. is she correct? if you know that a line has a slope of and a y-intercept of 7, what is the equation for that line in slope-intercept form?