Ineed . i got 1 as the answer i want to know if i was correct.

1. First you do the exponents and the parentheses -numerator and denominator - (basically multiply the numbers) and you answer should look like this; 25 * 4 - 5 * 16 / 20

2. Then, you multiply the numbers, you answer should look like this; 100 - 80 / 20

3. Subtract the numerator; your answer should look like this; 20/20

4. Divide your answer, and you final answer should be; 1

So, you were correct.

hope this helps :) -from peachimin

c

step-by-step explanation:

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -