What is the y-intercept of the function f()=4-5x?

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?

How can writing phrases as algebraic expressions you solve problems?

Acircle has a radius of 12.6cm what is the exact length of an arc formed by a central angle measuring 120