Answer:
3.5 y + 1.25 x = 30
Explanation:
she can buy x number of fly tapes and y number of ant traps. this amount has to be less or equal to the $30 that she has brought along.
3.5 y + 1.25 x ≤ 30
this is an equality.
since it asks for an equation, 3.5 y + 1.25x = 30