3x^2 + 3y^2 = 75
Dividing through by 3 we get
x^2 + y^2 = 25
The center is at (0,0) answer
Answer:
where is the figure
Step-by-step explanation:
cant help if theres no picture


Answer: 4y
Remark:

by the difference of squares identity, or formula.
Answer:
6 weeks 27kilo
12 weeks 54 kilo
Step-by-step explanation:
4.5*12=54
4.5*6=27
Answer:
(6x-12)+(8x-4)=180
14x-16=180
14x=196
x=14
Step-by-step explanation: