4.1 * 10 to the 2nd power in standard form

Small kingdoms on the iberian peninsula fought to take land back from the moors during which event? the hundred years’ war the wars of the roses the reconquista the great schism

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?