On number 5 how do you explain how you found your answer

30 girls , 12 were selected

40 boys, 16 were selected

We can simplify these down by finding the Greatest Common Factor in both girls and boys:

30:12 15:6 1 : 2.5 30/12 15/6 2.5

40:16 20:8 1 : 2.5 OR 40/16 20/8 2.5

They are equal ratios because their most simplified ratios/fractions are equivalent

6 on both sides and twelve on the top and the bottom

step-by-step explanation:

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!