The age of a father is 2 less than 7 times the age of his son. in 3 years, the sum of their ages will be 52. if the son age is s years, which equation models this situation? a. (s+3)+[(7s-2)+3}=52 b. 3s+3+3(7s-2)= 52 c. s+(7s-2)=52 d. (s-3)+(7s-2)-3=52

Which of the following is the graph of y= square root -x-3

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.

Shane and abha earned a team badge that required their team to collect no less than 2000 cans for recycling. abha collected 178 more cans than shane did. write an inequality to determine the number of cans, s, that shane could have collected.