What is the value of -25 plus 50-30 (-12)?

How old are you if you were born in 1986 in 2010? How do you answer photogrammetry problems. you are to provide mapping for a site that measures 1320 feet by 2800 feet.? Which two numbers add upto 320 and their product is 24000? Is 9.7 closer to 10 or 10.31? What is the area of a parallelogram with a height of 9 centimeters and a base of 7 centimeters? What is 23 percent in a fraction? How do you convert 3.25 to a mixed number? What is the answer to y3x-2? What is the largest 4 digit number where each digit is 7 times larger than the digit to its right except for the digit on the far right? What is the largest remainder that can occur when a two-digit integer is divided by the sum of its digits? What percent is 2 in 5? What is the prime factorization of 5x7x3x2? A major scale is made up of five whole steps and how many half steps? Will repeating decimals always be rational numbers? What does a rapid change of a magnetic field induce? Is 5.323232 a rational numbe4? What is 15 times 2 units 2 over 5? Is there a palindrome Fibonacci number? What is 3.25 percent written as a fraction? What is the velocity of a car if the wheel rotates 400 times a minute?