Answer:
bench: $250, table: $500
Explanation:
x = bench
y = garden table
set of equations:
y = 2x
x + y = $750
you can simply replace the y in x + y = $750 for 2x:
x + 2x = 750
3x = 750
x = 250
so the cost of the bench is $250
to find the table, just plug 250 into y = 2x:
y = 2(250)
y = 500
so the cost of the table is $500