Chinese could someone me with this? specifically 3,5,7 and 8.

My science teacher explained how the weather cycle works using an illustration. which is the best revision of this sentence?

Ou work as a cashier for a grocery store and earn $5 per hour. you also mow lawns and earn $10 per hour. you want to earn at least $50 per week, but would like to work no more than 10 hours per week. which system of inequalities, along with y ? 0 and x ? 0, would you use to solve the real-world problem?

How many plants are there how do you say them in spanish?