The length of the hypotenuse of a right triangle is 137 units. the length of one leg of the triangle is 105. gina wrote the following step to find the length of the unknown leg: length of the unknown leg = 1372 − 1052 = 18,769 − 11,025 = 7,744 units which statement best explains whether gina's step is correct or incorrect?

Cassie is traveling 675 miles today to visit her brother and his family. so far, she has stopped for gas three times. at the first stop, she put in 7.1 gallons of gas and paid $23.79. at her second stop, she put in 5.8 gallons of gas and paid $19.08. and, at the third stop, 6.6 gallons and paid $20.39. at which stop did casey pay the most for gas?

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.