The relationship between the number of $4 lunches you buy with a $100 school lunch card and the money remaining on the card

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest