So first we would do 217 divided by 3.5 which is 62. We are doing this because we are trying to find the unit rate. then we do 62 times 217. 124
18) the answer is 3 because CD is a segment bisector that seperates both AB and BD into 2 congruent segments.And perpendicular lines form right angles.
19) the answer is 1 because the S represents AB is congruent to BD. Then, A represents the right angles: angle ADC and angle BDC. Lastly. S is represented by the common side which is segment CD.
Exponential functions have "ˣ" in the exponent.ˣ
3x-20=130
3x=130+20
3x=150
x=150÷3
x=50
