Answer:
b= -164
Step-by-step explanation:
calculate the difference
7x(-75)-2b= -197
multiply the numbers
-525-2b= -197
move the constant to the right- hand side and change the sign
-2b= -197+525
add
-2b=328
divide
b= -164
Answer:
20.4cm²
Step-by-step explanation:
base= 10.2
height= 2
10.2×2=20.4cm²
Cost of two tickets that Sheila paid to her friend = $ 90
Actual price of 1 ticket = $ 52.50
So, actual price of 2 tickets = 
Hence, markdown or discount Sheila's friend gave her is =

The answer is $15.
51sin(47) because 51 is the hypotenuse and a is the opposite so we use sine because sine=opp/hypotenuse therefore sin(47)=a/51 then rearrange the formula to make a the subject the final answer is 37.3 to the nearest 3 significant figures
To find the mean absolute deviation, u have to find the mean of the data set first. after u find the mean, u subtract to find the numbers distance from the mean. after u do that, u then add up all the new numbers and then divide by how many numbers there are in the data set, and whatever ur answer ends up being is the mean absolute deviation of ur data set.