According to official census figures, 12% of couples living together are not married. A researcher took a random sample of 400 couples and found that 11% of them are not married. Test at the 15% significance level if the current percentage of unmarried couples is less than 12%.

Acamper leaves camp on a kayak and travels 50 miles east on a river, then he ties his kayak to the bank and travels 20 miles north on a bicycle. this trip can be plotted on the coordinate plane, where the camp is the point (0, 0). the distant of the camper to the camp can be found using the distance formula. which other formula can he use? a) 502 - 202 b) 502 + 202 c) 502 - 202 d) 502 + 202

Write the product as a trinomial. (x + 2)(x + 3) x2 + 5x + 6 x2 + 6x + 6 x2 + 6x + 5 x2 + 5

Abus travels 36 miles in 45 minutes. enter the number of miles the bus travels in 60 minutes at this rate.