What is the value of the expression 2³ + 4² − √25?

2³ = 8, 4² = 16, √25 = 5; so 8 + 16 − 5 = 19.

A rectangle has a length of 14 cm and a width of 5 cm. What is its perimeter?

Perimeter = 2(14 + 5) = 2 × 19 = 38 cm.

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A coat originally costs $120 and is on sale for 25% off. What is the sale price?