How would i estimate the sum of two decimals after iv added

John has $30. He spends $20 on a pants, and $25 on a shirt. How much money does he have now?

Roxanne bicycles 12 kilometers west to get from her house to school. After school she bicycles 5 kilometers north to her friend ellen's house. How far is Roxanne's house from Helen's house measured in a straight line?

There are 314 people in Geometrytown. The town is circular. The diameter is 10 miles. What is the population in people per square mile?

Suppose △DEF≅△MNO. Which congruency statement is true? A) DF≅NO B) DE≅MN C) EF≅MN D) EF≅MO

Which polynomial cannot be solved using the quadratic formula? A. X^2-2x-5 = 0 B. X^5-2x^3 = 0 C. X^2 + 2x-5 = 0 D. X^2 + 2x + 5 = 0

Gauge ran 12 miles in 20 minutes. What is Gaugue's hourly rate?

The design for the palladium window shown includes a semicircular shape at the top. The bottom is formed by squares of equal size.

Solve the following equation for y. Assume that b and y are non-zero real numbers. show and explain your work. 6-by=19

A hotel plans to use marble for part of the floor lobby. The marble section of the floor will be in the shape of a triangle with a base of 80 feet and a height of 60 feet. The marble flooring costs $6 per square foot.

16. The mean is defined as the O A. average of a data set. OB. number that shows up most often in a data set. O C. range of the data set. O D. middle of the data set.