Camilas target heart rate should be about 200 beats per minute. estimate the number of times camilas heart will beat in one second

about 3 beats per second

note 1 minute = 60 seconds

divide beats per minute by 60 for beats per second

= 3.333.... ≈ 3 beats per second

answer4 to the second power is 16

and 4 to the third power is 64,

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.