Let U be the set of all the positive integers less than 19 Let A be the set of all the even positive integers less than 19 Let B be the set of all the multiples of 3 positive integers less than 19. Define the following sets.
Remark: Note that both A and B are subsets of U. The complement of sets should be defined relative to the set U.
(a) A
(b) B
(c) A
(d) -B
(f) AnB
(g) A\B
(h) B\A
(i) -(AUB)
(j) -(ANB)

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40

42.4

step-by-step explanation:

convert to decimal

2 apples

step-by-step explanation:

taking away equals subtraction. 6-4=2