Write a story to match the equation x+212=10. Explain what x represents in your story.
Solve the equation. Explain or show your reasoning.

Anew shopping mall is gaining in popularity. every day since it opened, the number of shoppers is 5% more than the number of shoppers the day before. the total number of shoppers over the first 10 days is 1258 how many shoppers were on the first day?

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

Gh bisects fgi. find the measure of hgi •15° •21° •10° •8°