Expand then simplify 2 (x-5) + 2x

jan's old car travelled 198 km in 11 litres of diesel. He brought a new car that could travel twice as far on each litre diesel. how much fuel would jan need to travel 81 km in his new car?

Factor the sum of terms as a product of the gcf and sum. 60 + 72

The Burj Khalifa, the tallest building in the world with 163 floors, is having problems with its air conditioning system. It is suspected that the difference in air pressure between the first floor and the top floor is the problem.

If the radius of circle A is 7 meters, what is the radius of circle B

The sixth grade chorus has a boy to girl ratio of 3:8 which of the following ratios is equivalent to this ratio? A) 15 boys to 55 girls B) 55 boys to 15 girls C) 40 boys to 15 girls D) 15 boys to 40 girls

Does 110 and 16 ones make up the number 26

All number are less than - 3 and are grater to 5

On a biased dice, the probability of getting a 1 is 0.3 The dice is rolled 150 times How many ones would you expect to roll?

Seventeen members of Troy's family are going to an amusement park during the week of their family reunion. Adult tickets cost $39.50 each and child tickets cost $31 each.

A pirate's treasure chest is recovered. Every crew member is promised one item from the chest chosen at random by the first mate. In the chest are 6 rubies, 27 diamonds, 2 sapphires, 12 strands of pearls, 42 silver coins, and 7 gold coins.