-10 -9 -5 / -8 =
CAN u help me with this

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount