My parents increased my pocket money by 10% and then three months later increased it by further 10%

my father said this was an increase of 21% can you explain this

26 What is the value of x in the solution to the system of equations below? 6x + 3y = 13 3x - y = 4

A dilation has a scale factor of 1/4. what term describes this type of dilation? expansion congruent expulsion contraction

Expand 8ps (3qs-2pq+4ps)

Look at the table of values below. x y 1 3 2 7 3 11 Which equation is represented by the table?

Consider the following sets. U = {ordered pairs on a coordinate plane} A = {ordered pair solutions to y = x} B = {ordered pair solutions to y = 2x} Which ordered pair satisfies A ∩ B?

Raffey is upgrading his cell phone and monthly service plan check sell offers a new phone for $50 and unlimited service for a monthly fee of $40 cellular offers a new phone and unlimited service for a monthly fee of $50 after how many months were

June and Sushil win some money and share it in the ratio 1:4. June gets £14. How much did Sushil get?

Teachers at price middle school are planning a birthday party for the principal planners estimated that 42 slices of cake would be needed. In fact only 30 slices of cake were eating what was the error in estimate of how mucj cake was eaten?

A number is 42,300 when multiplied by 10. find the product of this number and 500

The sum of three consecutive odd numbers is - 87. What are the numbers?