Step-by-step explanation:
SA=ph+2A, that is, perimeter × height+ twice area
p=21+20+29=70cm
h=22cm
70×22=1540cm
A=1/2 ×20×21=210×2=420
1540+420=1960cm2
Three hundred and nine hundred thousand, and seventeen
Answer:
Noah had 8 cookies left over after the bake sale
Step-by-step explanation:
64 multiplied by 1.25 (or 125%) gives you 80 cookies
then you multiply 80 by .90 (or 90%) and you get 72 which means he sold 72 cookies
80-72 gives you 8 cookies
Noah had 8 cookies left over after the bake sale
Um i dont know, to be honest. Wait this is yesterday