Yuri spent $124 for 12 boards to make a bookcase. Each pine board costs $9, and each oak board costs $13. How many oak boards did Yuri buy? Enter your answer in the box.

5x-y+z=1 4x+2y-3z=32 X-3y+2z=-19

Which is longer 2.16 meters or 2.061 meters?

Simplify : - 7 (x-y-2z)

Erin had 55 stuffed bears. She took out her favorite 7 bears and then equally divided the other bears among her 3 sisters. Erin's youngest sister, Su, already had 15 stuffed bears. How many stuffed bears does Su have now?

Cran-apple ratio of 3 to 5

Line v has a slope of - 2/3. Line w is perpendicular to. What is the slope of line w?

80 pounds to 90 pounds, by what percentage did mr. mathewson increase the amount of weight he lifted?

The public school enrollment of a city is 13,500. Enrollment is decking at a rate of 4.5% per year. Predict the enrollment in 5 years (hint use r = 0.045

Which expression is equivalent to the fraction below? 5/8 A. 8 5 B. 8 • 8 C. 8 - 5 D. 8 + 5 E. 5 8 F. 5 • 5

Write a story that matches the expression - 7h - 10