72-42=30. Because you need to subtract the boys from the whole group. So, there are 30 girls.
Answer:
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Step-by-step explanation:
38.05
For finding GCF, just find the least number among them.
For example:
a.) 6x^2 - 9 find what number that can be divided to 6. In this case, it is 2 and 3.
You can't divide 9 by 2 so the answer in this equation would be 3.
b.) 2a^ 2 + 22a + 60 I's just the same method to use. In this case, we will use 2a^2. The factors that can be divided to 2 is (2,1). So we will choose 2 because it is the GCF of 2 and the equation is divisible by 2.
The answer is c it 3 to the right and 4 down
The base area is (1.5 cm)^2 = 2.25 cm^2.
The lateral area is
.. 4*(1/2)*(1.5 cm)*(3 cm) = 9 cm^2
The total area is (2.25 +9) cm^2 = 11.25 cm^2 . . . . . 2nd selection
