I need help now please guys

I think the first one is the best one

49x^2 - 121y^2

Step-by-step explanation:

it's a difference of two squares

(a+b)(a-b)=a^2- b^2 .

a=7x and b=11y

by squaring a and b u will get the solution

he can buy 4lbs. of live bait and 1lbs of natural bait

step-by-step explanation:

in geometry, parallel lines are lines in a plane which do not meet; that is, two lines in a plane that do not intersect or touch each other at any point are said to be parallel. by extension, a line and a plane, or two planes, in three-dimensional euclidean space that do not share a point are said to be parallel.