What is (3.9 times 10 to the power of 2) times (2.3 times 20 to the power of 6)

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

The amount cami raised during last year’s charity walk, $45.50, is 7/10 of the amount she raised this year. which equation represents n, the number of dollars she raised this year?

What is the area of the parallelogram? 48 sqrt(3)cm2 48 cm2 24 sqrt (3) cm2 24 cm2