The total number of seashells a divided by 10

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 a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?