Express 30 minutes per day as a ratio in simplest form.

Marlow is comparing the prices of two trucks rental compaines company a charges $3 per hour and an addtional $75 as serivce charges company b charges $2 per hour and an additional $85 as serivce charges

240 seventh graders and two-thirds of the students participate in after-school activities how many students participate in after-school activities

Lucinda leaves money in her savings account for 8 years. she started with $800 and earned 3.5% interest compound annually. how much money is in her account?