Gaira was asked to evaluate the algebraicexpression - 3.8x + 6 when x = - 7.5.

-3.8 (-7.5) + 6 (-7.5)

28.5 + (-45)

(-16.5) What mistake did she make? What is the correct answer?

QUICK Multiply. -3⋅7 A. - 21 B - 11 C. 11 D. 21

The price of an Apple Watch was reduced from $200 to $150. By what percentage was the price reduced?

The temperature was - 20.5°F at 5 A. M. and rose 5 degrees per hour for the next 5 hours. Melissa says the temperature at 10 A. M. was - 5.5°F. Which statement identifies Melissa's error and the correct answer? A. Melissa multiplied incorrectly.

Find the volume of each prisim

The triangular side walls of a flyover have been used for advertisements. The sides of the walls are 122m, 22m and 120m. The advertisements yield an earning of rupees 5000 per m^2 per year. A company hired one of its walls for 3 months.

According to the survey described here, what was the sample of the survey? "A recent telephone survey of 900 teenagers aged 16 to 19 from across the state shows 1 out of 4 of them drive themselves to school."

There are 378 million children who probably believe in Santa Claus. but some have been naughty so they don't get presents. however, once all the math is done Santa still has to stop in 91.8 million homes.

How many times greater is the value of the digit 4 in 4,560 than in 241?

Dan learned the mass of an electron is about 9.1*10⁻³¹ while the mass of a proton is about 1.7*10⁻²⁷. He thinks electrons have a greater mass than protons because 9.1 is greater than 1.

A developer wants to enclose a rectangular grassy lot that borders a city street for parking. If the developer has 288 feet of fencing and does not fence the side along the street, what is the largest area that can be enclosed? A. 20,736 ft2 B.