Can you help me with this part please

see https://musescore.org/en/handbook/tuplets

You may have this figured out already.
Using just the computer keyboard, get 4 eighth notes for the last half of the measure by clicking on rests and the number 4 for eighth rests. Hit escape to clear everything. Hit 4 to get back into 8th notes, click on the rest where your sequence begins, press 4, hit A for the first 8th note, then hold down control and hit 3 for tuplets, click on the first tuplet rest, then hit A, then B, then A. Now the triplet is on the score. Then hit 4 for eighth note, hit G, then 3 for 16th notes, then hit A, and then B. Hit escape, click on the first A and the Tie symbol, click on the first A again, then hold down the control key as you click on the B flat at the end and hit S (for slur). That's how I did it.
I use my computer keyboard for most of my note entries.
I signed up for the tutorial. I figured it was worth the small cost. I use it as I get stumped. However, not everything is in the tutorial. So this forum is great.
Rich '4oclockguy' Steinbrueck.