What is the explicit formula for the arithmetic sequence -7.5, -9, -10.5, -12, ?
O an=-7.5+(-1.5)(n-1)
O a,=-7.5+ d(-1.5-1)
o an=-1.5+(-7.5)(n-1)
o a=-1.5+0(-7.5-1)

Geometry: determine whether segment mn is parallel to segment kl. justify your answer. jm 6 mk 3 jn 8 nl 4

Write two subtraction equations that are equivalent to 5 + 12 = 17.

Aprojectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t. after how many seconds does the projectile take to reach its maximum height?