a bookcase has 2 shelves the top shelf has 10 more than 1/3 the number of books on the bottom shelf. there are 12 books on the bottom shelf how many books are on the top shelf

3/4x + 3y = 12 for when x = 5

A rhombus and a square have one and the same side of 6 cm. The area of the rhombus is 4/5 of the area of the square. Find the height of the rhombus.

Given A = 60o, B = 80o, and a = 5.1, use the Law of Sines to solve the triangle for the value of b. Round answer to two decimal places.

In order for any polygon to be regular, which of the following statements must be true? A) The interior angles are congruent to their exterior angles. B) All the diagonals bisect each other. C) Opposite pairs of sides are parallel.

Sam can not read part of his homework problem. -7y+5 (3+___y) Sam knows the expression simplifies to 3y+15. What number belongs on the blank line in the homework problem? A.) 4 B.) 10 C.) 2 D.) - 4

What is the worst thing to make in pottery class

Blank is 5 times as much as 27

Find the distance, in feet, a particle travels in its first 4 seconds of travel, if it moves according to the velocity equation v (t) = - t2 + 4 (in feet/sec). 55 over 3 16 over 3 16 12

Simplify this expression. 5^6 : 5^4 A. 2 B. 5 C. 10 D. 25

Caitlin wants to read for 90 minutes so far she has read 30% of her how much more longer does she need to read