after selling three fifth of its books, a bookstore had 880 textbooks left. how many books were in the bookstore initially

Find the magnitude and direction angle for the vector v=6cos137degrees i+6sin137degrees j. A.) 6,137 degrees B.) 6,43 degrees C.) 6squareroot of 2, 43 degrees D.) 6squareroot of 2, 137 degrees

A closed container has 4.02 ⋅ 1023 atoms of a gas. Each atom of the gas weighs 1.67 ⋅ 10-24 grams. Which of the following shows and explains the approximate total mass, in grams, of all the atoms of the gas in the container? 6.71 grams, because (4.

Solve for x: 0.25x+0.1x=9.8

In the diagram, all measurements are in centimetres. The lengths of the side of the quadrilateral are 2r+5, 2r, 4r-3 and r. Find an expression, in terms of r, for the perimeter of the quadrilateral. Give your expression in its simplest form.

Write three fractions that are equivalent to 1/2 Use a diagram to show how you know you are right.

Michaela wrote the following. If p + 9 = 25 and p = q, then q + 9 = 25. Which property did Michaela show? A) symmetric property of equality B) multiplication property of equality C) substitution property of equality D) reflexive property of equality

A music store orders wooden drumsticks that weigh 96 grams per pair. The total weight of the box of drumsticks is 782 grams. How many pairs of drumsticks are in the box if the empty box weighs 206 grams? Enter your answer.

8-0.3k=8 (Simplify your answer)

A regular convex polygon has 14 sides. What is the sum of the measures of the interior angles?

2 gallons of juice shared among 9 people