Carol has only 20p and 10p coins in her purse. She has three times as many 20p coins as 10p coins. If Carol has £4.20 altogether how many 20p coins does she have?(pls explain and I will mark brainliest if it is good explanation)​

answer: i would say b

step-by-step explanation:

with the way the question is worded, i believe b is the answer

the cost of the apple depends on the weight

the equivalent expression are always the hardest ones but you look at the gcf also

step-by-step explanation:

80% of the cookies

step-by-step explanation:

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.