Please help with math!!

The expression 42 plus 57 shows how much money nate spent at a store .which expression also shows how much money nate spend

The data in the table represent the height of an object over time. which model best represents the data? height of an object time (seconds) height (feet) 05 1 50 2 70 3 48 quadratic, because the height of the object increases or decreases with a multiplicative rate of change quadratic, because the height increases and then decreases exponential, because the height of the object increases or decreases with a multiplicative rate of change exponential, because the height increases and then decreases

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?