Write a percent proportion and solve each question
1) 39 is 5% of what number?

2) 90 is 36% of what number?

3) 22 is 25% of what number?

4) 6 is 75% of what number?

2x + 1 < 5 solve the following inequality. then place the correct number in the box provided.

Create and solve a linear equation that represents the model, where squares and triangles are shown evenly balanced on a balance beam. assume the weight of a square is 1 unit and the weight of a triangle is unknown.

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers