The price of a calculator has decreased from $200 to $150. what is the percentage of decrease?
a) 3%
b) 25%
c) 33%
d) 50%
will up prove

the correct answer is B) 25%

Step-by-step explanation:

If half of 200 is 100 (50%) and you're trying to find out what 150$ is equal to from the decrease rate, you divide 50 in half because youre finding the percentage of $200 to $150 and there's not much of a difference, so 25%.

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d