What percent of a sample of As-81 remains un-decayed after 132 seconds?

X+y=5 y=3x+7 x=? y=?

Write this number in standard form Three hundred thousand five thousand sixty-three

Bonnie is making dipping sauce. She mixes 150 millilters of soy sauce with 100 millilters of vinegar. How much soy sauce does Bonnie mix with every 1 millilters of vinegar? How much vinegar does Bonnie mix with every 1 millilter of soy sauce?

How to turn 0.4 into fractions

The label on a 2-quart container of orange juice states that the orange juice contains an average of 1 gram of fat or less. Answer the following questions for a hypothesis test that could be used to test the claim on the label.

Let set C = {even numbers between 1 and 99} and set D = {numbers between 1 and 150 that are evenly divisible by 10}. What is C ∩ D?

Which expression is the factored form of 2/3x+4? 2/3 (x+12) 1/3 (2x+6) 2/3 (x+6) 2/3 (x+4)

Ten 10s equal one thousand true or false

Use inductive reasoning to describe the pattern of each sequence. Then find the next two terms. 1, 2, 5, 6, 9,

How many possible midsegments are there for any quadrilateral?