What are the coefficients in the expression below? 2x + 6 + 7y + X

timed test pls help!

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?

∆red ≅ ∆ by rule will give brainiest if possible

98 point question what is the record for most points in one