A number that when added to another number equals zero

X^2 + 9x-90=0 Answers?

What's 7/8 (seven eighths) x 1 1/2 (one and one half)

Ris is building a model of the Washington Monument. Her model measures 15 in. tall and is 1.5 in. wide at the base. The actual width measurement at the base of the Washington Monument is about 55 ft.

A rectangle is 13 yd long and 23 yd wide. What is the area of the rectangle? Enter your answer in the box as a fraction in simplest form.

20% of the tickets sold at a water park were adult tickets. If the park sold 55 tickets in all, how many did it sell?

Consider the sum of 3/5 + 3/4. round each fraction and estimate the sum. add the two fractions using a common denominator and then round the result. which estimate is closer to the actual answer.

A restaurant can seat 100 people it has booth that seat four people and tables that seat six people so far five of the booth are full. what expression matches the situation

Solve - 7 = √ 2x - 9.

What is 5/7*w=40 1/2

sierra is supposed to practice flute for a total of 5 1/4 hours every week. this week, she practiced 15 minutes on sunday, 1 hour on monday, 30 minutes on tuesday, 45 minutes on wensday, 15 minutes on tursday, and 45 minutes on friday.