Well if rounding it to the tenths is 230 then you would round back down to 200
-18 because 2 1/4 as an improper fraction is 9/4 then it -8/1 then multiply which is -72/4 and simplified is -18.
Use Ga_thMath(u) (brainly doesn't allow me to type it) To use the app u need to take a pic of the problem and then it will process it and you'll get ur answer ASAP(most of the time). Many questions have been asked before so search it on brainly.
Answer:
I give bases example the triangle pyramid
Step-by-step explanation:
r-5r-6s+8s-15
-4r+2s-15
= 2s-4r-15