3 (-2a - 4) - (-5a - 10)

A System of Equations is used for what purpose?

Suppose that 15 inches of wire costs 45 cents. At the same rate, how much (in cents) will 12 inches of wire cost?

Partial product of 15 times 32

Round 412,825 to the nearest ten

Michelle earns seven dollars per hour and get the 10% commission on the sale price of each item she sells. She wants the work only 10 hours each week and has a weekly earnings goal of $200.

What is pi times 4 squared times 7

What is 8.49x10^-7 in decimal form? 0.0000000849 0.000000849 8,490,000 849,000,000

Travel Ez sells dollars at a rate of ($1.40) / (1 euro) and buys dollars at a rate of ($1.80) / (1 euro). At the beginning of a trip, Sophie exchanged $540 to get 300 euros.

What is the range of y = square root x+7+5?

Is to a solution of the equation 3x+6=6x?