99 - 88 = 11
11/88 = 0.125
0.125 = 12.5%
answer
percent increased <span>from 88 to 99 is 12.5%</span>
If A,B and C lie on the same line:
4x- 9 + 3x+5 = 17
7x = 21
x = 3
Answer:
B. 30
Step-by-step explanation:
The mosaic tile has a trapezoidal shape, so that its area can be determined as follows;
Area of a trapezium =
(a + b)h
where: a and b represent the length of its plane sides, and h is the height.
Area of a mosaic tile =
(4 + 6) 4
= 10 x 2
Area of a mosaic tile = 20 square inches.
But, Dan wants to cover a 600 square inch area.
So that the number of tiles needed = 
= 30
The number of mosaic tiles needed by Dan is 30.