X can be any number, so the domain is all real numbers (-∞, +∞)
y is always larger than 0 in this case, so the range is all real numbers larger than 0 (0, +∞)
The least common multiple of 18 and 42 is 126. Sorry I don't know how to explain it.
3.60 / 60cm = .06/cm or 6 cents per centimeter
100cm = 1m
$.06 * 100cm = $6.00 / m
100m = 100 * $6.00
= $600
Answer:
a) the answer if the substitute is 300
Answer:
22,-15 ................ maybe
