Froma boat the angle of elevation is 3 degrees. the tower is 63ft high. find the distance from the boat to the lighthout

Which statements are true? see picture

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest

Bring the fraction a/a-4 to a denominator of 16-a^2