Kayla earns $10.75 per hour babysitting. How much will she earn for a job that lasts from 8:30 a. m. to 4:30 p. m.

Simplify. −4x^2 (5x^4−3x^2+x−2) −20x^6−12x^4+8x^3−8x^2 −20x^6+12x^4−4x^3+8x^2 −20x^8+12x^4−4x^2+8x −20x^6+12x^4+4x^3−8x^2

3. a sum of $2700 is to be given in the form of 63 prizes. if the prize is of either $100 or $25, find the number of prizes of each type.

Tan198=asin164=? how to solve this? ?