Charles owns a hardware store. He put hammers and nails on sale last weekend. His first customer bought 3 hammers and 16 nails for $22.96. His last customer bought 2 hammers and 20 nails for $16.80. What was the sale price for hammers and nails?

Find the area of a trapezoid with a height of 23, base 1 of 10 and base 2 of 18

In a certain pentagon, the interior angles are a,b,c,d,e where a,b,c,d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?

Ageologist had two rocks on a scale that weighed 4.6 kilograms together.rock a was 0.5 of the total weight.how much did rock a weigh?