6n-7 = - (8n+7) what is the work and answer

Two hikers are 13 miles apart and walking torward each other. They meet in 2 hours. Find the rate of each hiker if one hiker walks 2.1 mph faster than the other one.

What is 186/248 as a mixed number?

A roller coaster begins at 90 feet above ground level. Then it descends 105 feet. Find the height of the coaster after the first descent.

a repairman purchased several furnace-blower motors for a total cost of $280 of his cost per motor has been $5 less, he could have purchased 1 additional motor. how many motors did he buy at the regular date?

a set of 30 event tickets are placed in a bag. there are 6 baseball tickets, 4 hocked without looking. find each probabbility. ey tickets, 4 basketball tickets, 2 football tickets, 3 symphony tickets, 4 ballet tickets, and 5 theater tickets.

Sohan Lal, the truck driver, is travelling from Abu Dhabi to Dubai. He refills the petrol tank in Abu Dhabi. If the truck can run 495 km on 36 liter petrol. What distance will the truck cover in 35 liters of petrol?

problem solving lesson 6a seven digit number has a 0 in the ones place, a 6in the ten thousands place, an 8 in the millions place, and fives in each if the remaining places. What is the number?

a food manufacturer recently developed a new preservative to extend the shelf life of its perishable food items. It makes two batches of the perishable items. The preservative is added only to the second batch.

The diagonals of a rectangle are equal. always sometimes never

Write a decimal between 12 and 15 that has a 3 in the tenths place and a 6 in the hundredths place