Answer:
8x^2 + 5y + 1
Step-by-step explanation:
1 + x^2 - 3 + 2y + 7x^2 + 3 + 3y
group like terms
= x^2 + 7x^2 + 2y + 3y + 1 - 3 + 3
add similar items
= 8x^2 + 2y + 3y + 1 - 3 + 3
= 8x^2 + 5y + 1 - 3 + 3
= 8x^2 + 5y + 1
You weren't clear on instructions
12
diameter is 2r
r=6
6*2=12
first go to menu on ur phone then press gallery and select which photo to use as display
