Answer:
18
Step-by-step explanation:
I am assuming you meant 8r-rs, in this case:
Plug in r=6 and s=5:
8(6)-(6)(5)
8*6 = 48 and -6*5= -30
Thus,
48-30= 18
Answer:
-1, 2.5, 20, 21
Step-by-step explanation:
16 plus 4 is <u>20</u>
<u>2.5</u>
7-8 is <u>-1</u>
<u>21</u>
Answer:
3:7
Step-by-step explanation:
3 parts of lemonade to 7 parts punch