What is 5{10[6+2(17-8)+12]} and how do u work it out. also what is 2{5[7+4(17-9)-22]} and 3{2[6+4(7+3)-2]}

Aplot of land is shaped like a quadrilateral. fences are built on the diagonal to divide the area into 4 sections. what is vi to the nearest tenth? gv = 6.55fv = 5.84vh = 3.27vi = ?

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

What is the total surface area of this square pyramid?