How is online school going so far?

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?

Richard save $32 in march he saved $48 in april and $38 in may then richard spent $113 on a keyboard how much money does richard have left

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250