Colin is saving money to buy art supplies that cost $45. If he saves 15% of the money he needs how much more does he have to save? Explain your reasoning.

Identify the type of observational study described. a statistical analyst obtains data about ankle injuries by examining a hospital's records from the past 3 years. cross-sectional retrospective prospective

I'm confused on this could anyone me and show me what i need to do to solve it.

Find the value of x. round the length to the nearest tenth