Question 956362
A=136; b1=7; h=16
{{{A=(1/2)h(b[1]+b[2])}}} Multiply each side by 2/h.
{{{2A/h=b[1]+b[2]}}} Subtract {{{b[1]}}} from each side.
{{{2A/h-b[1]=b[2]}}} Plug in values
{{{2(136)/16-7=b[2]}}}
{{{17-7=b[2]}}}
{{{10=b[2]}}} ANSWER: b2=10