A rectangle has a height of 4 and a width of x^2+3x+2

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

Astudent simplified a rational expression as shown.

Two blends of tea are mixed to make a blend that will be sold at the fair. black tea sells for $2.20 per pound and orange pekoe tea sells for $3.00 per pound. how much of each should be used to obtain a 4lb blend selling for $2.50 per pound?