The function f(t) = 5 cos(pi over 6t) + 7 represents the tide in stanley sea. it has a maximum of 12 feet when time (t) is 0 and a minimum of 2 feet. the sea repeats this cycle every 12 hours. after four hours, how high is the tide?

11.3 feet

9.5 feet

4.5 feet

2.6 feet

Acaterer charges $500 plus $30 per guest to cater a wedding. walt and traci don't want to spend more than $8000 on catering. write and solve an inequality in terms of the number of guests, g, that can be invited. a) 30g ? 8000; g ? 267 b) 500g < 8000; g < 16 c) 500 + 30g < 8000; g < 250 d) 500 + 30g ? 8000; g ? 250

Astore is having a sale in which all items are reduced by 20 percent. including tax, jennifer paid $21 for a pair of shorts. if the sales tax is 5 percent, what was the original price of the shorts

2f(x)= x+3 if 4 < x < 8 2x if x 28 2