The ramp has a base that extends 2.1 meters from the building and reaches a height of 1.5 meters. What is the length of the ramp? Also, calculate the cost of the ramp if the material for it costs $⁢10 per meter.

The ramp, the ground, and the building form a right triangle. Use the Pythagorean theorem: the ramp’s length is √(2.1² + 1.5²) = √6.66 ≈ 2.58 meters. At $10 per meter, the cost is 2.58 × $10 = $25.80, matching the choice that gives a length of 2.58 meters and a cost of $25.80.

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