Which could be his next step?
(3)(5)+(1/3)(5)+(3)(1/4)+(1/3)(1/4) (3)(5)+(3)(1/3)+(3)(1/4)+(3)(1/3)

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?

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then