Answer:
20 students
Step-by-step explanation:
The percentage of students scoring a B or A = 38 + 25 = 63%
We need to evaluate 63% of the 32 students who did the test
(63/100)*32 = 20.16
Therefore, approximately 20 students earned a B or higher
Answer:

Step-by-step explanation:
With a negative fractional exponent place a 1 over the positive value

rewrite 8 as

apply the power rule and multiply the exponents.
cancel the common factor of 3
rewrite the expression

raise 2 to the power of 4 which =16
so the answer is

0.09
one tenth of 0.9 is 0.9 divided by 10, which means moving the decimal point one place to the left
= 0.09
If I did everything correctly, It should be DEF.
Hope you get an A :d