Answer:
4.426020408 × 10∧19
Step-by-step explanation:
First, I found what 540 multiplied by 0.0000000028 was. Next, I took 66921428571428.6 and divided it by the product I got on top.
11.k>-3(4r+3)/4r-5
12.k<(2x+2)/x+3
15, 20, 25 is the correct answer
