Answer:
in six years, Mo will have roughly $393090.4 in savings bonds.
Explanation:
(This might not be the most efficient way to do it.)
year one - 290000 x 1.052 = 305080
year two - 305080 x 1.052 = 320944.16
year three - 320944.16 x 1.052 = 337633.256
year four - 337633.256 x 1.052 = 355190.185
year five - 355190.185 x 1.052 = 373660.075
year six - 373660.075 x 1.052 = 393090.399
in six years, Mo will have roughly $393090.4 in savings bonds.