Josh and his friends bought vanilla wafers for $4 per packet and chocolate wafers for $1 per packet at a carnival. they spent a total of $45 to buy a total of 27 packets of wafers of the two varieties.

Marlow is comparing the prices of two trucks rental compaines company a charges $3 per hour and an addtional $75 as serivce charges company b charges $2 per hour and an additional $85 as serivce charges

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base