Answer:
y=3x-2 is a function because it passes the vertical line test.
Step-by-step explanation:
300/L . Just divide area by one side
Answer:
80 cm
Step-by-step explanation:
(5 x 8) x 2
40 x 2
80 cm
Multiply both sides by 2.
2m = a + b
Subtract both sides by b.
2m - b = a
200 can be rounded down to 200, which is easy to add with. Thus, an estimate is 222+200=422.
Alternatively, you could round 222 up a bit, to get 225+200=425. This is actually the correct answer, but this rounding doesn't make the calculation easier, so if you needed a quick estimate I'd go with the first option.