How to write two expressions that will equal up to 19?

Which is a true statement about 7 and 14

A train goes at a constant speed. If it covers 150 miles in 2 1 2 hours, e How long would it take for that train to cover 270 miles?

Write a paragraph on the differences between proportional and non proportional relationships.

50 meters longer than x meters

How do you write numbers in scientific notation

What is the value of 5x^3+4y^3 when x=4 and y=3?

Find the rate and unit rate: 216 miles per 9 gallons A: 24 miles per 1 gallon B: 42 miles per 1 gallon C: 25 miles per 1 gallon D: 16 miles per 1 gallon

At 8:00 a. m., the outside temperature was - 16°. by 9:00 a. m., the outside temperature had dropped 6.5°. what was the outside temperature at 9:00 a. m.? a. 22.5° b. 9.5° c. - 9.5° d. - 22.5°

What is one thousand less than 921,438

What is the lowest common denominator among the fractions 1/3, 1/2, and 1/4?