Answer:
step 3 is the right answer
Answer: C500
Step-by-step explanation: you would multiply 26 and 21 = 546 the round that out and you get C
Answer:

Step-by-step explanation:
Given
Girls = 3
Boys = 5
Required
How many ways can 2 boys and girls be chosen?
The keyword in the question is chosen;
This implies combination and will be calculated as thus;

For Boys;
n = 5 and r = 2






For Girls;
n = 3 and r = 2






Total Selection is calculated as thus;



Answer:
12 feet
Step-by-step explanation:
Area of a Rectangle: l × w
84 ft² = l × 7 ft
Length = 84 ft² ÷ 7 ft = 12 feet
Hope this helps.
Answer:
only 6 brownies had both chocolate and walnuts
Step-by-step explanation:
lets found out how many brownies had walnuts.
90/5= 18
18x3= 54 brownies had walnuts.
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chocolate brownies.
90/3= 30 brownies had chocolate.
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54+ 30= 84 brownies
90-84= 6