Answer:
Step-by-step explanation:
7-x=-2
-x=-2-7
-x=-9
x=9
Answer:
Blood cells carry nutrients
Step-by-step explanation:
blood cells carry oxygen and other nutrients with them and that's how things like oxygen are supplied to tissues
Answer:
48
Step-by-step explanation:
Answer:D
Step-by-step explanation:
students playing trombone=12+10+7+16
Students playing trombone=45