no the answer is 90 there are ten 10,s and at the end it says - 10 so 10x10 = 100 - 10 = 90 i hope this is for math

The amount of oxygen that is actually used by the body during the rest or a hand workout is determined by the heart rate, the stroke volume, and the amount of a. blood circulating in the vascular system b. oxygen removed from the vascular system c. oxygen provided to the vascular system d. blood that individual has in the body e. hemoglobin in the red blood cells