A regular pentagon and an equilateral triangle have the same perimeter. The perimeter of the pentagon is 5(1/2 X-1) inches The perimeter of the triangle is 3(x-5) inches what is the perimeter of each figure

Explain step-by-step how to simplify -5(2x – 3y + 6z – 10).

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

Which of the following would be a reasonable estimate for the weight of a pencil? a. 1 × 10^-20 lb b. 1 × 10^20 lb c. 1 × 10^2 lb d. 1 × 10^-2 lb