Which of the following is a number set that contains the number –5? a. integers b. whole numbers c. natural numbers d. irrational numbers

The options are:

a) integer numbers. This is the set of all the whole numbers, positive, negative ad the 0, so this set includes the number -5.

B) Whole numbers: This set is equal to the integer set, so this set also contains -5.

C) Natural numbers: This set only contains the positive whole numbers, so this set does not contain the number -5.

D) irrational numbers: Are those numbers that can no be written ash the quotient between two whole numbers, are numbers that have infinite decimals after the decimal point, so -5 is not belonging to this set.

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.