4x-7: "seven less than" means you're going to subtract it from the upcoming value, which is "the product of four and a number". "a number" refers to an unknown variable, which I chose to be x. So put it all together and you get 4x-7
1/5, 0.14, 13%, 1/8, it requires me to have more characters in the answer...
Answer:
It’s C. 5x/x+3
Step-by-step explanation:
Just trust me
Assuming the ratio of 4:5 represents the ratio of width:length then we can set up a simple proportion to find the length...

L = 5(28)÷4
L = 35
Now we can find the perimeter and area of the rectangle:
A = LW
A = 28(35) = 980
P = 2L + 2W
P = 2(35) + 2(28) = 126
Answer:
C 350 workout the length of CD. Give answer correct to 3 significant figures. 52
B 102