A triangle has side lengths of (4.74 – 2.6) centimeters, (9.4u + 9.1) centimeters, and (6.2v – 8.7) centimeters. Which expression represents the perimeter, in
centimeters, of the triangle?

Find the midpoint m of z1=(8+5i) and z2=(12+3i)

What is the value of the expression below? 148+(-6)| + |– 35= 7|

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.