In 3 years, 25% of a radioactive element decays. What's it's half-life?

A candy manufacturer makes two types of special candy, say A and B. Candy A consists of equal parts of dark chocolate and caramel and Candy B consists of two parts of dark chocolate and one part of walnut.

Which sentence uses a definite article? A. Marcus scratched his knee when he fell. B. Sherri's friend plays the clarinet in the marching band. C. This ketchup isn't very red.

There are 400 seniors at Salt Lake City High. Fifty of them take Calculus and sixty-five of them take Physics. Of these, thirty-five students take both Calculus and Physics.

In this bar how many groups of 80 make 60

Assume that a firm reports net income of $87,000 prior to making adjusting entries for the following items: expired rent, $6,700; depreciation expense, $7,900; and supplies used, $3,300. Assume that the required adjusting entries have not been made.

A lot is in the shape of a triangle. The shorter leg measures 60 m. The hypotenuse is 20 m longer than the length of the longer leg. How long is the longer leg?

Greater than or less than 88% or 0.9

The money used in Saudi Arabia is the Riyal. The exchange rate is 4 Riyals to 1 dollar. How many Riyals would you receive if you exchange 5 dollars?

How do you solve - 140=18+4 (5y-2)

How many neutrons does element X have if its atomic number is 38 and its mass number is 92?