Sonya's employer matches 25% of sonya's contributions to her 401(k) plan. if sonya's employer contributed $600 to the plan last year, how much did sonya contribute to the plan last year?

Sonya contributed $2,400 to the plan last year.

Step-by-step explanation:

Sonya's employer matches 25% of Sonya's contribution to her 401(k) plan.

Sonya's employer contributed $600 to the plan last year.

Let Sonya's contribution to her 401(k) plan be = x

employer's contribution  is 25% of x = 600

0.25x = 600

x = 600 ÷ 0.25 = $2,400

Therefore, Sonya contributed $2,400 to the plan last year.