On the first visit to the veterinarian’s office, Cora’s kitten weighed 18 ounces. On the second visit, the kitten had gained 12 ounces. On the third visit, the kitten had gained another 10 ounces. What is the percent increase since the first visit in the kitten’s weight rounded to the nearest whole percent?

82%

Step-by-step explanation:

12+10 is 22

18/22*100 is 81.818181818181818 or 82%

Hope this helps plz hit the crown :D

122%

Step-by-step explanation:

old (first visit): 18 ounces

second visit: gained 12 ounces

third visit: gained 10 ounces

new: cora's kitten is now 40 ounces

-> now, we must find the percent increase between 18 and 40.

to find percent increase, we use this equation

new - old / old x 100

-> (40 - 18 / 18) x 100

  (22 / 18) x 100

  = 1.22 x 100

percent increase: 122%

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 -