To determine the amount Danny's class donated in terms of the amount donated by Ron's class, let's follow these steps:
1. Let [tex]\( d \)[/tex] be the amount of money Ron's class donated.
2. Danny's class donated [tex]\( 21\% \)[/tex] more than Ron's class. To find what [tex]\( 21\% \)[/tex] of [tex]\( d \)[/tex] is, we write:
[tex]\[
0.21d
\][/tex]
3. To find the total donation by Danny's class, we add this amount to the original donation ([tex]\( d \)[/tex]). This would be:
[tex]\[
d + 0.21d
\][/tex]
4. Simplify the expression by combining like terms:
[tex]\[
d + 0.21d = 1d + 0.21d = 1.21d
\][/tex]
Therefore, the amount Danny's class donated in terms of the amount donated by Ron's class is [tex]\( 1.21d \)[/tex].
The correct answer is:
A. [tex]\( 1.21d \)[/tex]
