Astudent charges twenty dollars per hour to type college papers. the student's average typing speed is fifty words per minute. at this rate, how much should the student charge for typing a paper that contains 31,500 words?

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 -

83-45=38

38 was the other number

hope your goes well, here's a turkey

-thekoolkid1o1

it is a horizontal line.