24. which of the following equations listed below
are linear equations?
equation i: c=nd
equation ii: f= 2c +32
ها | المانيا
equation iii: v = 40
1. equation , only
2. equation ii, only
3. equations i and ii
4. equation ii and i

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?

Can someone me with my math problems i have a bunch. i will give brainliest and lots of pleeeaaasssee

Runners run around the school's football field. the cross country coach determines that the width of the field is seventy yards shorter than the length. part a write an expression that represents the perimeter of the football field. let x represent the length of the football field. include parentheses in your expression. next, write an equivalent expression that does not include parentheses. what property or properties did you use to simplify? explain. part b the cross country coach later determines that the length of the football field is 120 yards. all students must run five laps. using your answer from part a, determine the actual number of yards that each athlete must run in the tryouts. in order to make the team, students must complete the laps in 6 minutes. how quickly must they run each lap?