Monica had some cookies. She gave six to her sister. She gave her brother 3 more than her sister. Monica has 12 cookies left

Monica had 27 cookies

Step-by-step explanation:

6 + (6+3) + 12 = ?

6 + 9 + 12 = ?

15 + 12 = 27

Monica had 27 cookies

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PLZZ MARK BRAINLIEST

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

21

jk it's 20

step-by-step explanation: