It took amber 5 hours 16 minutes to finish a race. her time at the halfway marker was 2 hours 49 minutes. how long did it take amber to complete the second half of the race?

-1 hour =?
-so, 5 hr 16 min = 4 hr ? min?
-4 hour 76 min- 2 hr 49 min =?

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.

As a salesperson you get $50/day and $3.60/each sales you make. if you want to make $60 in one day, how many sales would you need need to make ? a 3b 4c 5d 6 show work.

Solve the equation for b: a= (1/2)(b)(h)