325 + 225 + 79 = 629
629 - 438 = $191
= A. $191
3x10^8 is 7 times larger than 3x10^2
Answer:
Lenght - Width
2 - 4
3 - 6
5 - 10
7 - 14
Step-by-step explanation:
Because we have 5 and 10, we know that width is lenght multiple by 2, and lenght is width divided by 2.
Answer:
D. 1 and 20
Step-by-step explanation:
To solve the equation, factor the quadratic and set the factors equal to 0.
d^2 - 21d + 20 becomes (d-20)(d-1) since -1*-20 = 20 and -1+-20 = -21.
Set each equal to 0 and solve for x.
d-20 = 0 d = 20
d - 1 = 0 d = 1
315 / 9 = 35
35 feet per second
