4x - 1 x=-1
y=3
What is the solution of the system?
2. y= 5x – 5
y=5x+3
What is the solution of the syst

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

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?

If the discriminant if a quadratic equation is 4 which statement describes the roots?