Bob earns money by tutoring friends at $8 per hour and walking dogs for $7.50 per hour. he has 15 hours available to work each week. what is the least number of hours for which he can tutor and still make $115 for the week?

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.

Alana has 12.5 cups of flour with which she is baking four loaves of raisin bread and one large pretzel. the pretzel requires 2.5 cups of flour to make. how much flour is in each loaf of raisin bread? explain the steps to follow to get the answer.

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics