Rebecca and Stephanie are earning money by walking their neighbor's dogs. They get a flat rate of $25 plus $5 for every dog they walk. If they earned $75, how many dogs did they walk? (show the equation) (how you solved it) (and what the answer is)

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e.g. 98.7654). x f(x) 0 1 2 3

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

What is the value of x when x + 7 = 21?