Mario has 160 pizzas and is collecting two pizzas a week. Write the equation for the number of pizzas Mario has

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

The length of a shadow of the building is 36m. the length of the pole, which is perpendicular to the ground, is 1.9m. the length of the pole's shadow is 1.52m. what is the height of the building?

Find the distance between (7,-6) and (-3,-9)