The answer is 133 beats per minute.
To calculate this, we will use proportion.
If 190 beats per minute are 100%, how many beats per minute are 70%:
190 bpm : 100% = x : 70%



Thus, Xanthe's target heart rate is 133 beats per minute.
Answer:
Step-by-step explanation:
(8-0)/(2+2)= 8/4= 2
y - 0 = 2(x + 2)
y = 2x + 4
912.501 is your answer. :)