Nicole has 18 nickels n and dimes d. If the value of her coins is $1.45, how many of each coin does she have?

Find the value of x for which abcd must be a parallelogram -9-6x x-30

Find the multiplicative inverse of 8-12i

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