Why is nobody answering my questions? i really need help! Select all the terms that are like terms.

1/2 x2
-3.4x3
5yx2
1.25x2
4x
-8x2
5 3/8

❤️ (geometry) does the construction demonstrate how to copy an angle correctly using technology a) yes; the distance between points a and f was used to create circle h b) yes; the distance between points f and g was used to create circle h c)no; the distance between points a and f was used to create circle h d) no; the distance between points f and g was used to create circle h

Classify the following number. −9.070707…

The function h (t) = -16t squared + 28t + 500 represents the height of a rock t seconds after it's propelled by a slingshot what does h (3.2) represent?