Problem 47
Simplify the given expression. $$ 11-1[19-(2+15)] $$
Problem 50
Simplify the given expression. $$ 13-3+11 $$
Problem 51
Which of the following numbers is not divisible by 6? $$702, 168, 678, 658$$
Problem 53
A set of beads costs 50 cents per dozen. What is the cost (in dollars) of 19 dozen sets of beads?
Problem 54
Simplify the given expression. $$ 2\\{4[6+9]-2[3+4]\\} $$
Problem 55
If a math tutor worked for 47 hours and was paid $15 each hour, how much money would she have made?
Problem 55
According to the U.S. Census Bureau, the estimated population of Humboldt County is 129,000 as of July 2008. Round to the nearest ten thousand.
Problem 56
2 times an unknown number is 10. Find the unknown number.
Problem 56
Which of the following numbers is not divisible by 8? $$2626, 5016, 1392, 1736$$
Problem 58
Simplify the given expression. $$ (5-3)^{4} $$