Maria va al kiosco de su barrio y gasta $85 pesos en golosinas, $150 en mercaderias para su mamá y $125 en medio kilogramo de helado. si
paga con un billete de $500 ¿cuánto recibirá de vuelto? ¿cuánto gasto entre las golosinas y el helado?

Elizabeth claims that the fourth root of 2 can be expressed as 2^m since (2^m)^n = 2. find the values of m and n for the case where elizabeth's claim is true.

Afamily has two cars. the first car has a fuel efficiency of 25 miles per gallon of gas and the second has a fuel efficiency of 15 miles per gallon of gas. during one particular week, the two cars went a combined total of 1025 miles, for a total gas consumption of 55 gallons. how many gallons were consumed by each of the two cars that week?

Grandpa ernie is shrinking! over the past 4 years his height decreased by a total of 2.4 cm.it decreased by the same amount each year. what was the change in grandpa ernie's height each year