# 5
203*0.453592

# 6
130/(5*12+4)^2*703

# 7
360*(1+0.007)^18

# 11
height<-6*12+2

# 14
210/height^2*703

# 15
180/height^2*703

# 17
ftemps<-c(72,58,63,91)

#18
(ftemps-32)*5/9