This is kinda confusing and I’m not understanding can anyone help me!!! Due tomorrow

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 amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?

Which of the following shows the length of the third side, in inches, of the triangle below