7
Step-by-step explanation:
21=42-3r
21-42=3r
-21=3r
r=7
income. 10x+1300
expenses 3x+(1800+1500)
expenses 3x+3300
to break even:
income = expense,
10x + 1300 = 3x + 3300,
solve for x.
step-by-step explanation:
mark brainliest
the number 100 represents the number of trials in the experiment.
49/100 represents the experimental probability of the coin landing heads up.