There are 18 boys and 12 girl in math class. what is the ratio of girls to total students. a. 18: 30 b. 12: 30 c. 30: 12 d. 30: 18 2. which of the following ratios are equivalent to 6: 9. choose all that apply a. 3: 2 b. 18/27 c. 30: 45 d. 24/32 3. what is the unit price for one cd if 3 cds cost $29.85? a. 9.65 b. 8.95 c. 9.95 d. 9.85 4. milo types 34 words per minute. how many words can he type in 7 minutes? a. 245 words b. 240 words c. 250 words d. 275 words

1.  B

2. B and C

3.C

4.B the answer is 238 but i guess the rounded

Step-by-step explanation:

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

answer: 88

step-by-step explanation: