Which of the following are mathematical sentences? Check all that apply. MULTIPLE CHOICE

A. 4 - d = 8

B. 4 - v

C. 3 + 2 = 5

D. 6

E. 5g

F. 1 < 2

option A, C, D and F are mathematical sentences.

The number of dimes she has is; B: 8 dimes

Liam has $1.

She has twice as many dimes as nickels.

This means that;

2n = d

Now, from conversions ;

$0.5 = 1 nickel

$0.1 = 1 dime

Thus possible combination to get $1 is;

4 nickels and 8 dimes

Thus;

4(0.5) + 8(0.1) = $1

Thus, he has 8 dimes and 4 nickels

Read more about conversion rate at; link