10+10 because the sum of their squares is 200, if you choose any other pair, the sum of their squares will be higher.
1.20 + 0.34 = 1.54
That is the answer.
No, line graphs are used only to show change over time
R = 804/91
8.835
this is ur answer i how i helped
6000 - 1800 = 4200
4200/4 = 1050
so she donated 25% to charity
