3a+7+2a and 7a+5. These expressions are not equivalent. 5a+7 does not equal 7a+5.
Answer:
y = 50x + 200
Step-by-step explanation:
the 200 is the y intercept because it is where his pay starts, so even if Matt doesnt make any sales he will still get 200 that week
the slope (50) is determined because that is what will change
if he makes 2 sales he will make 100 + 200 that week, and if he makes 4 sales he will make 200 + 200 that week and so on
U can use the cosine or sine rules depending on the question/triangle