Evaluate 4xy+7y-9x+21-3x^2 when x=2 and y=-1 pour answer

-24?

Step-by-step explanation:

4xy + 7y - 9x + 21 - 3x^2

4(2)(-1) + 7(-1) - 9(2) + 21 - 3(2)^2

-8 - 7 - 18 + 21 - 12

- 24

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

fwms@lil_ben06

step-by-step explanation: