the sum of two numbers is 9. if one number is subtracted from the other, the result is 1: find the numbers

A and B are two events. P (A) = 0.54; P (B) = 0.42; p (A or B) = 0.85. Find the probability of A and B.

Nora has 4 candles on her cake. Maria has 9 more candles than Nora. How many candles Maria have?

What is the 7th term in the geometric sequence described by this explicit formula? an=2.5 (n-1)

Judy, Jeff and Jim each earned $5.40 raking leaves. How much did they earn in all

Margo used 864 beads to make necklaces for the art club. She made 24 necklaces with the beads. If each necklace has the same number of beads, how many beads did Margo use for each necklace?

Which number would not be in scientific notation? 4.5 x 10^4 6 x 10^7 12.5 x 10^3 4.2 x 10^-8 2.355 x 10 ^5 0.45 x 10^3

Circular gears P and Q start rotating at the same time at constant speeds. Gear P makes 10 revolutions per minute and Gear Q makes 40 revolutions per minute.

There are over 2,700 species of snakes in the world. Over 600 species are venomous. Write the fraction of species that are not venomous as a decimal

A recipe calls for 2 tsp of butter. Melinda wants to make 40% more servings than the recipe makes. Which expression represents how many teaspoons of butter Melinda should use? A. 0.6 2 B. 1.6 2 C. 0.4 2 D. 1.4 2

Select all of the solutions of 4x2 - 36 = 0. If there are no solutions, select the empty set. -3 -3/2 3/2 3 {}