Answer:
yes this is true.
Supplementary angles always add up to 180°.
I think 6x3=18
So, the answer is 18
Answer:
the first one is 267% and 400%
Step-by-step explanation:
but i don't know for the 2nd
Answer:

Step-by-step explanation:
Let x represent the number of lawns Jacob mowed and y represent the number of dogs Sarah walked.
Jacob charges $20 each time he mows a lawn, then he earns $20x for x lawns mowed.
Sarah charges $10 each time she walks a dog, then she earns $10y for y dogs walked.
In total, they will earn $(20x + 10y). They need at least $2000 in order to go on a trip, then

Note that 