4x-7y=3
x-7y=-15
solve with process of elimination

The length of triangle base is 26. a line, which is parallel to the base divides the triangle into two equal area parts. find the length of the segment between triangle legs.

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers

Layla answer 21 of the 25 questions on his history test correctly.what decimal represents the fraction of problem he answer incorrectly.