Write each subtraction equation as an addition equation. Column A
Column B
1.
a-9= 6
a. x= -7 + (-10)
2.
p-20= -30
b. p= 20 + -30
3
.
z-(-12)= 15
c. a=9+6
4.
x-(-7)= -10
d. Z= (-12) + 15

Can someone me i’m confused. will give brainliest and a whole bunch of points

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

Someone answer this asap rn for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =