Please Find X as soon as possible

Ineed solving this problem h/8=-25 solve for h idk how to this can someone show me and also give an answer you

You are making a battery for a science project. you have copper wire for your first electrode. you need to choose a conductor, a second electrode, and a device to plug into your battery. you have already chosen a lemon conductor. complete each statement below about the options that include a lemon conductor.

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.