tim's current bank balance is $75. he adds a charge of -$31 when he buys lunch for him and his friend. write and expression and use a model to determine tim's bank account balance now.

Is the orthocenter of a triangle on the inside ?

The price of one share of a company’s stock declined $13.89 every day for 2.5 days what was the stocks total decline in price

Shannon mary and john earn a weekly allowance ahannon earns the amount that is 2/3 of what john earns mary earns an amount that is 1 2/3 of what johns earns 20 dollars a week who eaens the greatest allowance and who earns the least