8,x,2,y are terms in GP. Find (a) x & y (b) the sum of the first 20 terms.

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?

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.