Given: ad bc and ad || bc
prove: abcd is a parallelogram.
angles segments
triangles statements reasons
zbca
zdac
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statements
reasons
assemble the proof by dragging tiles to
the statements and reasons columns
) intro

Solve 2x+y=3 x+y=5 in substitution method

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab