Of the 200 students in a certain school,60 study Maths,40 study biology, and 30 study chemistry.10 study maths and biology, 5 study maths and chemistry only. one of the students studies all three subjects. if a student is selected at a random, find the probability that he studies one of the three subjects.​

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step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or  

well the answer to that is xoxoxo

step-by-step explanation:

he earned 78.75 in interest.

step-by-step explanation:

it is 28 degrees colder in detroit than philadelphia.

step-by-step explanation:

what number adds to 21

-7 + ? = 21

-7 + 28 = 21

hope it