If ∆DEF ≅ ∆PQR, DE=3x-10, QR=4x-23 and PQ=2x+7, what is the value of EF?

The weight of an object in a particular scale is 175.2 lbs. the measured weight may vary from the actual weight by at most 0.1 lbs. what is the range of actual weights of the object

Adifferent website gives the cost for the first train as £56.88 and the second train as £20.11 with a £9.50 charge for cycle storage for the whole trip. how much would the journey cost you?

Use the distributive law to multiply. 3(4x + 5y + 6)