For one Biology test, Peter correctly answered 12 questions. These correct answers gave him a percent score of 50%. In total, how many questions were on this Biology test? Round your answer to the nearest whole number if necessary.

24

Step-by-step explanation:

peter answer 24 which 12 he got right that he got 50% so that half of the questions so another half would be 12

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answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.