Mrs. Smith is celebrating Pi day. She ordered 3 pizzas and 2 gallons of drinks for her morning class. She also ordered 5 pizzas and 4 gallons of drinks for $50 for her afternoon class. Solve using a system of equations to find the cost of a pizza and the cost of a gallon of drink Please help ASAP!!! 100 points to anyone who answers! (I would have done more but 100 is the limit:( )

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500