Rational Number Practice 1

It was in -12º in Copenhagen and in -5º in Oslo. Which city was colder?

• Copenhagen

• Oslo

A fish is 12 meters below the surface of the ocean. A sea bird is 28 meters above the surface of the ocean. If the bird is directly above the fish, how far apart are they?

• 12 meters

• 16 meters

• 28 meters

• 40 meters

Han wants to buy a $30 ticket to a game, but the pre-order tickets are sold out. There will be more tickets sold the day of the game, with a markup of 200%. How much should Han expect to pay for the ticket if he buys it the day of the game?

• $60

• $90

• $6,000

• $9,000

At midnight the temperature is -6º . At midday the temperature is 9º . By how much did the temperature rise?

• -3

• 3

• -15

• 15

Noah was assigned to make 64 cookies for the bake sale. He made 125% of that number. 90% of the cookies he made were sold. How many of Noah's cookies were left after the bake sale?

• 8

• 64

• 72

• 80

What is the final elevation if a diver starts at 5 m and changes -16 m?

• 21

• -21

• -11

• 11

Last week, the price, in dollars, of a gallon of gasoline was g. This week, the price of gasoline per gallon increased by 5%. Which expressions represent this week's price, in dollars, of a gallon of gasoline? Select all that apply.

• g + 0.05

• g + 0.05g

• 1.05g

• 0.05g

• (1+0.05)g

Which of the following are equivalent to the following expression: -81.4 + (-12) Select all that apply

• -81.4 + 12

• -12 + (-81.4)

• -93.4

• -81.4 -12

Select equivalent equations: a - 9 = 6

• a + (-9) = 6

• a = 6 - 9

• a = 6 + (-9)

• a = (-9) + 6

• a + (-6) = (-9)

A restaurant bill is $59 and you pay $72. What percentage gratuity (tip) did you pay?

• $13

• 13%

• 18%

• 22%