Your brother is 1/3 your age. your sister is 6 years older tahn your brother. your sister is 10 years old. write and solve a equation to find your age a

Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.

Sum of the interior angles of a pentagon

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4