Answer:
3w < 18
Step-by-step explanation:
To do 3 times if you put 3 against a variable that means to multiply. Since a number is unknown it turns into variable which is w in this case. Then less than 18 to do the less than symbol, think of them like crocodile they always eat the bigger number and since 3w is less than 18 the croc < eats 18. Thats just an easy way of remembering. Hope this helps :)
Answer:
D
Step-by-step explanation:
The problem with D is that 7 + 11 = 18. The rule is any two sides must exceed the third. D gives the shorter + the middle length = the longest length.
That can't work. All the others are fine.
Answer:
Step-by-step explanation:
202 students taking math and are business majors
only math, would be (861 - 202) = 659
only business majors, would be (525 - 202) = 323
so there are (659 + 323) = 982 that are math or business majors