Raymond hiked down a mountain and decreased his elevation at an average rate of −3.5 meters per minute. He started at an elevation of 245 meters. After an hour of hiking he is at an elevation of meters HELP ASAP I WILL GIVE BRAINLIEST AND 41 POINTS!!!

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

1. which of the following algebraic equations is equivalent to ? x^n = a a^n = x a^x = n x^a = n 2. 16^1/4= 1/2 2 4 3. (-36)^1/2= -6 1/6 no real number 4. 8^2/3= 4 8 16√2 )^5/2= 7,776 1/7,776 no real number 6. m ^ the square root of a^2m simplified is: 7. the square root of 3^3 times the square root of 2 simplified and in radical form is:

Candy lives in the center of town. her friend darlene lives 28 miles to the east and her friend dana lives 21 miles north. approximately how far do dana and darline live apart ?