Sarah is twice as old as her youngest brother. If the difference Between their ages is 15 years. How old is the youngest brother

Coins were developed as a medium of exchange because other items like cows, grain, and land were more difficult to move from place to place; true false

Write as a sum of logarithms log 1/2 (abc)

Joanna split three pitchers of water equally among her eighth plants. What fraction of a pitcher did each player get? A. 1/8 of a pitcher B. 1/7 of a pitcher C. 3/8 of a pitcher D. 8/3 of a pitcher

A student is constructing a triangle with the following dimensions: * Side length of 16 inches * Side length of 23 inches Which measurements could be the length of the third side? Select all that apply.

What is the difference between 33 1/3% and 33%

In triangle abc, ab=90 in, bc=80 in, and angle b measures 50°. what is the approximate perimeter of the triangle? a) 242.4 in. b) 265.3 in. c) 308.3 in. d) 324.1 in.

The sum of two numbers is 180. one number is 5 times the number

What is the vertex of the parobala y = (x-5) (x-1)

7.25 (x + 1.5 · 10)

Simplify: (2x^-2/y^3) ^-4