Answer:
x=15
Step-by-step explanation:
21:2x=7:10 can be rewritten as 21/2x=7/10
21/2x=7/10, cross multiply
= 14x=210
x=15
Answer:
12
Step-by-step explanation:
6(-1)+(-2)
-6(-2)
12
I might be wrong so please forgive me if I am.
Answer:
52°
Step-by-step explanation:
<D = 360 - (78+106 + 124)
<D = 360 - 308
<D = 52°
Answer:
dont yu multiply them all
Step-by-step explanation: