Determine by substitution if - 2 is the root of 5x=10

Which sentence could be used to describe the equation 105 = 78 + y? The sum of 78 and a number is 105. The number 105 is more than 78. The sum of 105 and 78 is a number. Seventy-eight is more than the number one hundred five.

Solve for x. -1/2 (x + 5) = - 10 A) - 25 B) - 10 C) 0 D) 15

A train travels 200 miles in 4 hours at a constant rate. What is the constant rate of change for the train in miles per hour?

A sugar donut has 110 more calories than twice the number of calories in a slice of brown bread. Together they contain at least 194 calories. What is the smallest possible number of calories in the slice of bread

Lionel is planning a one-day outing. The Thrill amusement park charges an entry fee of $40 and an additional $5 per ride, x. The Splash water park charges an entry fee of $60 and an additional $3 per ride, x.

If x1=4, compute the value of x2 if the mean is 1

30 people go for dinner it costs £240.93 how much should each person pay

Dan built deck that is 5 feet long and 5 feet wide He built another deck that is 5 feet long and 7 wide. He built a third deck that is 5 feet long and 9 feet wide. How do the areas change?

It takes Anjali eight minutes to wax a floor. Shayna can wax the same floor in 12 minutes. Find how long it would take them if they worked together.

Jesse takes his dog and cat to the vet. Jesse's dog weights 23 pounds. the vet tell him his cat weights 5/8 as much as the dog. How much does the cat weight