At the city museum, child admission is $5.70 and adult admission is $9.40. On Tuesday, four times as many adult tickets as child tickets were sold, for a total sales of $1688.70. How many child tickets were sold that day?

for me what is finding a good play list and going out because i can not lay down and relax so i usually go to a coffee shop. i also use the gum trick and this actually works. another advice is highlighting subjects it really does me remember certain things

step-by-step explanation:

loloo

step-by-step explanation:

lololool