(20 POINTS!) Keisha bought a new pair of skis for $450. She puts $120 down and got a student discount of $45. Her mother gave her 1/2 of the balance for her birthday. Which of these expressions could be used to find the amount Keisha still owes for the skis?
A) 450 - 120 + 45 ÷ 2 C) 450 - (120 - 45) ÷ 2
B) [450 - (120 - 45) ÷ 2] D) [450 - (120 + 45)] ÷ 2

can someone answer this question plz

step-by-step explanation:

answer: the distance

step-by-step explanation:

to calculate the distance d of a line segment with endpoints (x1, y1) and (x2, y2) use the formula d (x2 x1)2 (y2 y1)2. to calculate the midpoint of a line segment with endpoints (x1, y1) and (x2, y2) use the formula

answer: x=60

a28=58

step-by-step explanation:

a1=a1+(n-1)d

a28= 4+ (28-1)2

a28=4+(27)(2)

a28=4+54

a28=58