A shopkeeper allows a 10% discount and still gains 10%. What is the cost price of a book which is marked at ₹220

Idont get this question can someone me solve it? ** the distance light travels in one second (1 light second) is about 1.86 ×10^5 mi. saturn is about 475 light-seconds from the sun. about how many miles from the sun is saturn..my guess is 8.83* 10^7 you so much

17 in long 1.3 ft wide and 8in high what is the volume

Reagan lives five miles farther from school than vanessa lives. write an expression to describe how far reagan lives from school