A superintendent orders some new laptops (10) for two schools in her district. She receives a bill for $7,500. A. Draw a representation that can show the relationship between the number of laptops and the total cost.

B. Use the representation to write an equation that can be used to determine the cost of one laptop.

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

According to a research study, parents with young children slept 6.4 hours each night last year, on average. a random sample of 18 parents with young children was surveyed and the mean amount of time per night each parent slept was 6.8. this data has a sample standard deviation of 0.9. (assume that the scores are normally distributed.) researchers conduct a one-mean hypothesis at the 5% significance level, to test if the mean amount of time parents with young children sleep per night is greater than the mean amount of time last year. the null and alternative hypotheses are h0: μ=6.4 and ha: μ> 6.4, which is a right-tailed test. the test statistic is determined to be t0=1.89 using the partial t-table below, determine the critical value(s). if there is only one critical value, leave the second answer box blank.

Consider the function below. which of the following functions could be the inverse of function f? pic below