Solve: six times a number plus 4 is the same as the number minus 11

Classify each polynomial by its degree and by its number of 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?

Write the fraction or mixed number and the decimal shown by the model