A/3=7/10
21=10a
a=2.1
100a=100*2.1=210
Answer:
y=-x-0.833.....
Step-by-step explanation:
You solve for Y in the first two and then solve for x in the last two parts of the problem.
Answer:
Step-by-step explanation:


The base is same power can be add or subtract


Standard Form: 702.656
Expanded Form: 700+2+0.6+0.05+0.006
15+3x-4+6x= 9x+11 add 6+3 then subtract 15-4
3y-4x+8x-y= 4x+2y add -4+8 then subtract 3-1
5x+8x+10x-3x= 20x Add 10+5+8 to get 23 then subtract 3