He could buy 12 postcards for $3.36.
and 8 letters for $3.36
Answer:
C is correct
Step-by-step explanation:
10x³+2x²+0x-11
+0x³+9x²+2x-2
=10x³+11x²+2x-13
It is equivalent to this= 36 x 54 k
The radius is half the diameter, so the formula would be r=d divided by 2
Answer:
15 cm²
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Geometry</u>
Area of a Rectangle: A = lw
- <em>l</em> is length
- <em>w</em> is width
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify variables</em>
<em>l</em> = 5 cm
<em>w</em> = 3 cm
<u>Step 2: Find Area</u>
- Substitute in variables [Area of a Rectangle Formula]: A = (5 cm)(3 cm)
- Multiply: A = 15 cm²
