Barbu areo suma de bani de doua ori mai mare decat suma pe care oare ana. carmen are cu 56,20 lei mai putin decat barbu, iar dinu are o suma de bani de treizeci si sapte de ori mai mica decat carmen. ce suma de bani are fiecare, daca dinu are 12,40 lei?

Is the orthocenter of a triangle on the inside ?

Asphere has a diameter of 10 in. what is the volume of the sphere?

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125