The stem and leaf plot shows the masses of some buttons.
What is the combined mass of the buttons?
Classify 9, 37, 7, and 49 as either prime or composite.
Move the correct answer to each label.
9
37
7
49
Prime
Composite
Antonia has two flasks containing saline solution. The first flask contains 28.8 milliliters. The second flask contains 5 times as much as the first flask. Measured in milliliters, how much saline solution is in the second flask?
Umberto needs to balance his October budget.
What can Umberto do to balance his budget?
Luisa created the diagram below to classify triangles by their angles.
Which word belongs in the empty box?