Answer:
x+3
Step-by-step explanation:
21=7x3. Hence answer is 3
Just do 198 divide by 33. The answer is how much gas will be used.
Yintercepts are where x=0
set to zero to solve
0^2+4y^2=16
4y^2=16
divide 4
y^2=4
sqrt both sides
y=+/-2
xintercept is where y=0
x^2+4(0)^2=16
x^2+0=16
x^2=16
sdqrtboth sides
x=+/-4
yintercepts are (0,2) and (0,-2)
xintercepts are (4,0) and (-4,0)
Answer:

Step-by-step explanation:

hope this helps
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