The answer is going to be B hopefully this helps
5:4 You just put a Colen In the middle EDIT*THERE WOULD ACTUALLY BE A INFINITE AMOUNT OF ANSWER FOR EXAMPLE IT COULD BE 10:8 BECAUSE YOU MULTIPLY BY 2 SO EVERY TIME U DO DAT U HAVE MANY ANSWERS.
56/306= 7/34
the right answer for 7 is 7/34 since 8*7/17*16
8-15/3.2(pi d)=4.68 round up you get 5
you need 5 laps
6/7 divide by 3/14
Divide = multiply reciprocal
6/7 * 14/3 = 84/21 = 4
She can paint 4 pictures in a full hour