Wesley bought one T-shirt for $7.90 and another T-shirt for $12.40. What is the total amount he spent? a. $20.30
b.$20
c.$4.50
d.$4
(brainliest included for correct answer)

1. what is the formula for finding the vertical distance between two points on a coordinate plane?

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.