Answer:
X=40 (40x2=80)
Y=5 (5x4=20)
Step-by-step explanation:
n = 6
So,
19 = 5(6) + 7 - 3(6)
19 = 30 + 7 - 3(6)
19 = 30 + 7 - 18
19 = 37 - 18
19 = 19
Hope this helps!
80 jumps per minute
91.................