What are the coordinates of the midpoint between the points (3, 4) and (-7, 12)?

(-2, 8)

Step-by-step explanation:

Use the midpoint formula (see attachment)

x = (Xa + Xb)/2 = (3 - 7)/2 = -2

y = (Ya + Yb)/2 = (4 + 12)/2 = 8

so midpoint is (-2, 8)

which expression can be used to convert 80 us dollars (usd) to australian dollars (aud)?

1 usd = 1.0343 aud

1 aud = 0.9668 usd

step-by-step explanation:

sorry just need the points