Answer
a. $x+3$
b. $3x$
c. $7.3 \div x$
d. $10-x$
e. $5x+7$
Work Step by Step
a.
Sum is adding two numbers together.
$x+3$
b.
Product is multiplying two numbers together.
$3x$
c.
Quotient is dividing a number by another number.
$7.3 \div x$
d.
10 decreased by a number means subtracting a number from 10.
$10-x$
e.
$5x+7$