Simplify: x^3 × x^7 what is the answer to this

Use set builder notation to represent the following set: { -3, -2, -1, 0}

Aplot of land has been surveyed for a new housing development with borders ab, bc, dc, and da. the plot of land is a right trapezoid with a height of 60 feet and an opposite leg length of 65 feet

X-10/4 when x = –18 a 7 b –2 c –7 d 2