The perimeter of an isosceles triangle is 38 centimeters. the total length of the two equal legs are 6 more than thrice the length of the base. find the lengths of the three sides.

Antonio made a scale model of a building. the model's scale is 1 inch to 235 feet and its height is 3.5 inches. what is the exact height of the actual building? enter your answer in the box.

Determine whether the graphs of y=8x+5 and -y=8x-5 are parallel, perpendicular, coincident, or none of these. a. coincident b. parallel c. perpendicular d. none of these

Fractions can be added and subtracted only if they're fractions. a. like b. proper c. improper d. unlike