Tatiana reads 40 pages of her book every night for x number of nights write an expression of that represents the number of pages she has read

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

How can you construct perpendicular lines and prove theorems about perpendicular lines

Can some one explain this i got sent this. is this a threat i’m scared