Answer:
-9
Step-by-step explanation:
R = (-1) + (-2) = -3
S = (-4) + (1) = -3
T = (-6) + (-3) = -9
Answer: After 8 hours the pressure will be at -60?
Explanation: not sure how the balloon can reach -60 kilopascals but 15% of 300 is 45 and 45 x 8(hours) is 360. 300 - 360 is -60
54 boo . Divide 189 by 7 then multiply by 2 which is 54
Answer:
116
Step-by-step explanation:
82 brownies sold for $1 each is $82 in total
140-82=58
each cookie is sold at $0.5 so we need to multiply the rest of the cash by 2
58×2=116
so he needs to sell 116 more cookies to reach his goal