Well, honey, 7.8 rounded to the nearest tenth is 7.8. That's right, no change needed there. It's already sitting pretty as the closest tenths place value. So, no need to fuss over this one, just leave it be at 7.8.
9.6
8.3
78% of 380 means (78/100) * 380 = 296.4 (exact)
It is 0.8 when rounded to the nearest tenth
It is then 56.5 when rounded to the nearest tenth
78 rounded to the nearest tenth is 78.0
78.0
9.6
8.3
78% of 380 means (78/100) * 380 = 296.4 (exact)
It is 232.4 when rounded to the nearest tenth
It is then 56.5 when rounded to the nearest tenth
It is then 20.2 when rounded to the nearest tenth
It is 0.8 when rounded to the nearest tenth
It is then 52.8 when rounded to the nearest tenth
4.4
346.21 rounded to the nearest tenth is 346.2.