18. Nidhi bought two pens, for * 30 and 3 20 respectively. She sold the first pen at a profit of
10% and the other pen at a loss of 10%. Find
her profit or loss percent

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

In a coastal town, the humidity, measured in grams of water per kilogram of air, increases by 43% for every 1 degree celsius increase in temperature. a scientist observes that the humidity on monday morning is 5.75 grams per kilogram. he wants to know how much the temperature must increase for the humidity to reach at least 49.17 grams per kilogram. let t represent the increase in temperature, in degrees celsius, from monday morning's observation. write an inequality to represent the situation, and use it to determine the desired temperature increase.

Ys is the perpendicular bisector of xz what it is the length of xs