What is the unit rate for 501.9 mi in 21 h? enter your answer, as a decimal, in the box

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?

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

What is the base of 1/9 to the power of 2