Anew drug on the market is known to cure 20% of patients with breast cancer. if a group of 20 patients is randomly
selected, what is the probability of observing, at most, one patient who will be cured of breast cancer?
a• (20)/1 (0-20)^1 (0.80)^19
b. 1-(20)/1 (.20)'(0.230)
c. (20)/0( .80)^20+(20/)^1(.80)^19
d • (20)/0 (.80)^20
e. 1-(20/)^20
01-(20)10.2010

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.

Galen sold tickets of his church’s carnival for a total of $2,820. children’s tickets cost $3 each and adult tickets cost $5 each. the number of children’s tickets sold was 30 more than 3 times the number of adult tickets slod. how many children’s ticket and how many adult tickets did he sell?