Answer:
less than
Step-by-step explanation:
Answer:
(21x+168)cm²
Step-by-step explanation:
If the expression 2 1 (x + 8) represents the area of the model bridge, where 2 1 is the width, in centimeters, and (x + 8) represents the extended length, the expression that is equivalent to 21(x+8) can be gotten by expanding the function. The expansion of the function will give the area of the rectangular model bridge as shown;
21(x+8) = 21x+ 168
The expression equivalent to 21(x+8) is therefore (21x+68)cm²
Note that the the unit of the value and function given is in cm therefore the unit of their equivalent expression will be in cm²
Adjusted balance
$400.00 - ($35.85 + $10.42) + $120.00 = $473.73
70 packages can be filled from a jar that contains 7/8pounds of the leaves
<h3>Ratio and proportions</h3>
Fractions are written as a ratio of two integers. If each bad contains 1/80 pound peppermint leaves, then;
1/80pounds = 1 package
To determine the total package for 7/8 pounds of leaves
7/8 pounds = x
Take the ratios
1/80 * 8/7 = 1/x
8/560 = 1/x
x = 560/8
x = 70
70 packages can be filled from a jar that contains 7/8pounds of the leaves
Learn more on proportions here: brainly.com/question/16889039
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You multiply the terms i n the second bracket by x then multiply them by + 2 then simplify
= 2x^3 + 9x^2 + 8x + 4x^2 + 18x + 16
now add like terms
= 2x^3
- now add the like terms :- 9x^2 + 4x^2 = 13x^2 and so on
