Three bowls and four mugs can hold a total of 2.52 litres of water. Each bowl can hold 70 ml more than a mug. How much water can a mug hold? Give your answer in litres.
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Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

You wanted to draw an enlargement of design that printed on a card that is 4 in by 5