answer:The expression 2+3*4 should be calculated using the order of operations, often remembered by the acronym PEMDAS which stands for Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). So, in this case, you should do the multiplication before the addition. 3*4 equals 12, and then you add 2, so the result is 14.

answer:Sure, let's solve this step by step following the order of operations, which is often remembered by the acronym PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). 1. First, we perform the multiplication operations: - 13x9 = 117 - 7x15 = 105 2. Then, we substitute these values back into the equation: - 24 + 117 + 2 - 105 3. Finally, we perform the addition and subtraction operations from left to right: - 24 + 117 = 141 - 141 + 2 = 143 - 143 - 105 = 38 So, the result of 24+13x9+2-7x15 is 38.

answer:343 multiplied by 2 is equal to 686.

answer:To calculate 20% of 800 using multiplication, you can convert the percentage to a decimal and then multiply. Here's how: 20% is equivalent to 0.20 in decimal form. So, you multiply 800 by 0.20: 800 * 0.20 = 160 So, 20% of 800 is 160. To verify this answer by dividing 800 by 5, you do the following: 800 / 5 = 160 So, both methods give you the same result, confirming that the answer is correct. In LaTeX, the calculations would be represented as follows: For the multiplication method: [ 800 times 0.20 = 160 ] For the division method: [ frac{800}{5} = 160 ] These LaTeX equations, when rendered, will show the mathematical operations in a more visually appealing and professional format.