I don't know if I should put the parentheses around the number 4 or not

Molly is designing a new drone for the air force. the drone is supposed to be 30 feet long and 4 feet tall. she is building a prototype for testing that will be 12 feet long. how tall should the prototype be?

Which represents the perimeter of a rectangle whose length is represented by x and width is four more than twice it's length? A. 14x B. 3x + 4 C. 6x + 8 D. 8x + 4

Mitch is buying candy bars for his friends. he wants to give 2 bars to each friend, and he wants to have 10 spare bars. he can sfford to buy 20 candy bars.

67, 37, 71, 67, 58, 56, 77, 69, 55, 52, find the range

Simplify the product using FOIL: (4x-4) (3x-4) A. 12x^2 - 28x + 16 B. 12x^2 - 4x - 16 C. 12x^2 + 4x - 16 D. 12x^2 + 28x + 16

Multiply. (3.5 x 10^-5) (3 x 10-10)

Angelina ran 2 miles in 15 minutes. At that rate, how far will she run in 1 hour?

Which term tells us that we are seeing more and more of the lighted portion of the moon? A. full B. waning C. new D. waxing

Frank earns $59900 one year and receives a 7 % raise in salary. What is his new salary?

7/10+4/5 = write the sum in simplest form