At the end of this month, Les will start investing $300 a monthfor his retirement account. If he continues investing $300/monthfor 40 more years and earns an average APR of 7 percent on hisretireme At the end of this month, Les will start investing \( \$ 300 \mathrm{a} \) month for his retirement account. If he continues investing \( \$ 300 \) /month for 40 more years and earns an average APR of 2 answers