Which two answer options describe a correct way to solve this problem?
frida bought a bagel for $1.25 and a cup of coffee for $2.70. how much change did frida get back from $10?
a.
step 1: subtract $1.25 from $10.00.
step 2: subtract $2.70 from the answer.
b.
step 1: add $1.25 and $2.70.
step 2: subtract the sum from $10.00.
c.
step 1: add $1.25 and $2.70.
step 2: add the sum to $10.00.
d.
step 1: subtract $1.25 from $2.70.
step 2: subtract that answer from $10.00.

This figure consists of a rectangle and semicircle. what is the perimeter of this figure use 3.14 for pi 60.84m 72.84m 79.68m 98.52m

What percent of the circle below is shaded?

1- 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. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?