A rectangle has an area of 150 square units. The width of the rectangle is 10 units and its length is x units longer than its width.
Solve the equation 150 = 10(x + 10) to find the value of x.

Tracy solved the following problem. which of the statements is true? 9 ÷ 3 + 6 × 2 3 + 6 × 2 9 × 2 18 her answer is correct. her answer is incorrect. she should have multiplied before dividing. her answer is incorrect. she should have multiplied before adding. her answer is incorrect. she should have added before dividing.

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

The wheels of a bicycle have a diameter of 70cm. how many meters will the bicycle travel if each wheel makes 50 revolutions