M-5-(-12) would equal m+7 because there is a negative before the parentheses and in the parentheses which means you would change it to a positive so, negative 5 plus positive 12 is 7 and since the 7 is positive you would add m (hope this helped)
300 is the original amount and 0.5 is the rate (a percent) which is deacying because it is less than 1
Answer:15
Step-by-step explanation:
Solve for w in the equation 2w + 10 =50.
B = √(14² - 9²) = √(196-81) = √115 ≈ 10.7 units
