Problem 59
If bricks weigh 4 kilograms each, what is the weight (in kilograms) of 5000 bricks?
Problem 60
3 more than a certain number is \(19 .\) Find the number.
Problem 62
Which of the following numbers is not divisible by 9? $$153, 981, 909, 919$$
Problem 63
Simplify the given expression. $$ 2^{3}-1^{3} $$
Problem 65
The length s of a side of a square is given. Find the perimeter P of the square. $$ s=3 \text { in } $$
Problem 66
Simplify the given expression. $$ 6 \cdot 3^{2}+7 \cdot 5+12 $$
Problem 67
Find the sum. $$3005 + 5217 $$
Problem 69
Find the sum. $$575 + 354 + 759$$
Problem 72
Simplify the given expression. $$ 4^{3}-(6+5) $$
Problem 73
Identify the given number as prime, composite, or neither. $$27$$