The sum of the first n whole numbers is given by the expression −1 (n2 + n). Expand the equation by2multiplying, then find the sum of the first 12 whole numbers.

Which is the length of the hypotenuse of the triangle a. 94ft b. 214 ft c. 33ft d. 37 ft

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

Given the following linear function sketch the graph of the function and find the domain and range. ƒ(x) = -5x + 4