Answer:
Step-by-step explanation:
You have to start out with the distributive property 5 times 2 times c is 10+5c; now you have to subtract 5c on both sides in the upside down T chart, now its 10=45+c and your answer will be c=4.5.
25 more
2500 in standard form is 2.5 × 10³
(x+5i)(x-5i)
We use imaginary numbers to solve that. since i = sqare root of -1 so i * i = -1.
99
Since given, < 100.
So,
100 - 1 = 99
